Frases de Stephen Jay Gould (274 citações, página 6)

“The theory of punctuated equilibrium, proposed by Niles Eldredge and myself, is not, as so often misunderstood, a radical claim for truly sudden change, but a recognition that ordinary processes of speciation, properly conceived as glacially slow by the standard of our own life-span, do not resolve into geological time as long sequences of insensibly graded intermediates (the traditional, or gradualistic, view), but as geologically “sudden” origins at single bedding planes.”

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Stephen Jay Gould livro Time's Arrow, Time's Cycle

Fonte: Time's Arrow, Time's Cycle (1987), pp. 2–3

“I am not insensible to natural beauty, but my emotional joys center on the improbable yet sometimes wondrous works of that tiny and accidental evolutionary twig called Homo sapiens. And I find, among these works, nothing more noble than the history of our struggle to understand nature—a majestic entity of such vast spatial and temporal scope that she cannot care much for a little mammalian afterthought with a curious evolutionary invention, even if that invention has, for the first time in some four billion years of life on earth, produced recursion as a creature reflects back upon its own production and evolution. Thus, I love nature primarily for the puzzles and intellectual delights that she offers to the first organ capable of such curious contemplation.”

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Stephen Jay Gould

Prologue, p. 13
Bully for Brontosaurus (1991)

“I have long recognized the theory and aesthetic of such comprehensive display: show everything and incite wonder by sheer variety. But I had never realized how powerfully the decor of a cabinet museum can promote this goal until I saw the Dublin [Natural History Museum] fixtures redone right. […] The exuberance is all of one piece—organic and architectural. I write this essay to offer my warmest congratulations to the Dublin Museum for choosing preservation—a decision not only scientifically right, but also ethically sound and decidedly courageous. The avant-garde is not an exclusive locus of courage; a principled stand within a reconstituted rear unit may call down just as much ridicule and demand equal fortitude. Crowds do not always rush off in admirable or defendable directions.”

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Stephen Jay Gould livro Dinosaur in a Haystack

"Cabinet Museums: Alive, Alive, O!", p. 244
Dinosaur in a Haystack (1995)

“I… praise the newly opened halls of fossil mammals at the American Museum of Natural History. …teaching us about evolutionary trees by organizing the entire hall as a central trunk and set of branches… placing our brains in our feet and letting us learn by walking. …the chosen geometry of evolutionary organization… violates the traditional picture of life's history, thus illustrating… an important principle in the history of science: the central role of pictures, graphs, and other forms of visual representation in channeling and constraining our thought. …Words are an evolutionary afterthought. …My colleagues have actually done it. …They have ordered all the fossils into an unconventional iconographic tree that fractures the bias of progress. …so that we can preambulate along the tree of life and absorb the new scheme viscerally by walking… They have taken Colbert's radical idea and arranged all the fossils by their branching order, not their later "success" or "advancement."”

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Stephen Jay Gould livro Dinosaur in a Haystack

Groups that branch early appear early in the hall... Sea cows and elephants are at the end of the hall, horses in the middle, and primates near the beginning.
"Evolution by Walking", pp. 249-254.
Dinosaur in a Haystack (1995)

“[T]rying to keep an intellectual away from literature works about as well as recommending chastity to Homo sapiens, the sexiest primate of all.”

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Stephen Jay Gould

The Median Isn't the Message (1985)

“A complete theory of evolution must acknowledge a balance between “external” forces of environment imposing selection for local adaptation and “internal” forces representing constraints of inheritance and development. Vavilov placed too much emphasis on internal constraints and downgraded the power of selection. But Western Darwinians have erred equally in practically ignoring (while acknowledging in theory) the limits placed on selection by structure and development—what Vavilov and the older biologists would have called “laws of form.””

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Stephen Jay Gould livro Hen's Teeth and Horse's Toes

"A Hearing for Vavilov", p. 144
Hen's Teeth and Horse's Toes (1983)

“I want to argue that the “sudden” appearance of species in the fossil record and our failure to note subsequent evolutionary change within them is the proper prediction of evolutionary theory as we understand it. […] Evolutionary “sequences” are not rungs on a ladder, but our retrospective reconstruction of a circuitous path running like a labyrinth, branch to branch, from the base of the bush to a lineage now surviving at its top.”

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Stephen Jay Gould livro Ever Since Darwin

"Bushes and Ladders in Human Evolution", p. 61
Ever Since Darwin (1977)

“Our failure to discern a universal good does not record any lack of insight or ingenuity, but merely demonstrates that nature contains no moral messages framed in human terms. Morality is a subject for philosophers, theologians, students of the humanities, indeed for all thinking people. The answers will not be read passively from nature; they do not, and cannot, arise from the data of science. The factual state of the world does not teach us how we, with our powers for good and evil, should alter or preserve it in the most ethical manner.”

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Stephen Jay Gould livro Hen's Teeth and Horse's Toes

"Nonmoral Nature", pp. 42–43
Hen's Teeth and Horse's Toes (1983)

“No one should feel at all offended or threatened by the obvious fact that we are not all born entirely blank, or entirely the same, in our mixture of the broad behavioral propensities defining what we call “temperament.””

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Stephen Jay Gould livro The Lying Stones of Marrakech

"The Internal Brand of the Scarlet W", p. 281
The Lying Stones of Marrakech (2001)

“In what other world is myth so harmless? Great battles kill and maim; great homers and no-hitters are pure joy or deep tragedy without practical consequence […]. Life is inherently ambiguous; baseball games pit pure good against abject evil. Even Saddam Hussein must have committed one act of kindness in his life, but what iota of good could possibly be said for aluminum bats or the designated hitter rule?”

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Stephen Jay Gould

"Baseball and the Two Faces of Janus", p. 272; originally published as "The Virtues of Nakedness" in The New York Review of Books (1990-10-11)
Triumph and Tragedy in Mudville (2003)

“I do not think that, practically or morally, we can defend a policy of saving every distinctive local population of organisms. I can cite a good rationale for the preservation of species, for each species is a unique and separate natural object that, once lost, can never be reconstituted. But subspecies are distinctive local populations of species with broader geographic range. Subspecies are dynamic, interbreedable, and constantly changing: what then are we saving by declaring them all inviolate?”

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Stephen Jay Gould livro Eight Little Piggies

"The Golden Rule: A Proper Scale for Our Environmental Crisis", p. 43
Eight Little Piggies (1993)

“I believe […] that we can still have a genre of scientific books suitable for and accessible alike to professionals and interested laypeople. The concepts of science, in all their richness and ambiguity, can be presented without any compromise, without any simplification counting as distortion, in language accessible to all intelligent people. […] I hope that this book can be read with profit both in seminars for graduate students and—if the movie stinks and you forgot your sleeping pills—on the businessman's special to Tokyo.”

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Stephen Jay Gould livro Wonderful Life

Preface, p. 16
Wonderful Life (1989)

“This is a personal story of statistics, properly interpreted, as profoundly nurturant and life-giving.”

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Stephen Jay Gould

The Median Isn't the Message (1985)

“Substantial changes, introduced during the last half of the 20th century, have built a structure so expanded beyond the original Darwinian core, and so enlarged by new principles of macroevolutionary explanation, that the full exposition, while remaining within the domain of Darwinian logic, must be construed as basically different from the canonical theory of natural selection, rather than simply extended.”

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Stephen Jay Gould livro The Structure of Evolutionary Theory

Fonte: The Structure of Evolutionary Theory (2002), p. 3

“No one supposed that dinoflagellates might actively kill fish as an evolved response for their own specific advantage, including a potential nutritional benefit for the algal cells. And yet the dinoflagellates do seem to be killing and eating fishes in a manner suggesting active evolution for this most peculiar reversal.”

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Stephen Jay Gould livro Leonardo's Mountain of Clams and the Diet of Worms

"Reversing Established Orders", p. 400
Leonardo's Mountain of Clams and the Diet of Worms (1998)

“Hyper-selectionism has been with us for a long time in various guises; for it represents the late nineteenth century's scientific version of the myth of natural harmony—all is for the best in the best of all possible worlds (all structures well designed for a definite purpose in this case). It is, indeed, the vision of foolish Dr. Pangloss, so vividly satirized by Voltaire in Candide—the world is not necessarily good, but it is the best we could possibly have.”

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Stephen Jay Gould livro The Panda's Thumb

"Natural Selection and the Human Brain: Darwin vs. Wallace", p. 57
The Panda's Thumb (1980)

“The classical argument for why a supposedly decent and moral creature like Homo sapiens can mistreat and even extirpate other species rests upon an extreme position in a continuum. The Cartesian tradition, formulated explicitly in the seventeenth century, but developed in "folk" and other versions throughout human history no doubt, holds that other animals are little more than unfeeling machines, with only humans enjoying "consciousness," however defined.”

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Stephen Jay Gould livro Leonardo's Mountain of Clams and the Diet of Worms

"Can We Truly Know Sloth and Rapacity?" pp. 389
Leonardo's Mountain of Clams and the Diet of Worms (1998)

“We live in an essential and unresolvable tension between our unity with nature and our dangerous uniqueness. Systems that attempt to place and make sense of us by focusing exclusively either on the uniqueness or the unity are doomed to failure. But we must not stop asking and questing because the answers are complex and ambiguous.”

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Stephen Jay Gould livro Hen's Teeth and Horse's Toes

"Our Natural Place", p. 250
Hen's Teeth and Horse's Toes (1983)

“All versions written for nonscientists speak of fused males as the curious tale of the anglerfish—just as we so often hear about the monkey swinging through the trees, or the worm burrowing through soil. But if nature teaches us any lesson, it loudly proclaims life's diversity. There ain't no such abstraction as the clam, the fly, or the anglerfish. Ceratioid anglerfishes come in nearly 100 species, and each has its own peculiarity.”

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Stephen Jay Gould livro Hen's Teeth and Horse's Toes

"Big Fish, Little Fish", p. 29
Hen's Teeth and Horse's Toes (1983)

“I strongly reject any conceptual scheme that places our options on a line, and holds that the only alternative to a pair of extreme positions lies somewhere between them. More fruitful perspectives often require that we step off the line to a site outside the dichotomy.”

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Stephen Jay Gould livro Wonderful Life

Fonte: Wonderful Life (1989), p. 51

“Consider one of the standard "laments" or "stories of wonder" in conventional tales of natural history: the mayfly that lives but a single day (a sadness even recorded in the technical name for this biological group - Ephemoptera). Yes, the adult fly may enjoy only a moment in the sun, but we should honor the entire life cycle and recognize that the larvae, or juvenile stages, live and develop for months. Larvae are not mere preparations for a brief adulthood. We might better read the entire life cycle as a division of labor, with larvae as feeding and growing stages, and the adult as a short-lived reproductive machine. In this sense, we could well view the adult fly's day as the larva's clever and transient device for making a new generation of truly fundamental feeders.”

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Stephen Jay Gould livro Leonardo's Mountain of Clams and the Diet of Worms

Triumph of the Root-Heads, p. 356
Leonardo's Mountain of Clams and the Diet of Worms (1998)

“I like to summarize what I regard as the pedestal-smashing messages of Darwin's revolution in the following statement, which might be chanted several times a day, like a Hare Krishna mantra, to encourage penetration into the soul: Humans are not the end result of predictable evolutionary progress, but rather a fortuitous cosmic afterthought, a tiny little twig on the enormously arborescent bush of life, which, if replanted from seed, would almost surely not grow this twig again, or perhaps any twig with any property that we would care to call consciousness.”

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Stephen Jay Gould livro Dinosaur in a Haystack

"Can We Complete Darwin's Revolution?", p. 327
Dinosaur in a Haystack (1995)

“Evolution is an obstacle course not a freeway; the correct analogue for long-term success is a distant punt receiver evading legions of would-be tacklers in an oddly zigzagged path toward a goal, not a horse thundering down the flat.”

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Stephen Jay Gould livro Eight Little Piggies

"Tires to Sandals", p. 318
Eight Little Piggies (1993)

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Stephen Jay Gould livro Leonardo's Mountain of Clams and the Diet of Worms

"Brotherhood by Inversion", p. 330-31
Leonardo's Mountain of Clams and the Diet of Worms (1998)

“The facts of nature are what they are, but we can only view them through the spectacles of our mind. Our mind works largely by metaphor and comparison, not always (or often) by relentless logic. When we are caught in conceptual traps, the best exit is often a change in metaphor—not because the new guideline will be truer to nature (for neither the old nor the new metaphor lies “out there” in the woods), but because we need a shift to more fruitful perspectives, and metaphor is often the best agent of conceptual transition.”

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Stephen Jay Gould

"Glow, Big Glowworm", p. 264
Bully for Brontosaurus (1991)

“I am particularly fond of [Emmanuel Mendes da Costa's] Natural History of Fossils because this treatise, more than any other work written in English, records a short episode expressing one of the grand false starts in the history of natural science—and nothing can be quite so informative and instructive as a juicy mistake.”

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Stephen Jay Gould livro Leonardo's Mountain of Clams and the Diet of Worms

"The Clam Stripped Bare by Her Naturalists, Even", p. 93
Leonardo's Mountain of Clams and the Diet of Worms (1998)

“We often think, naïvely, that missing data are the primary impediments to intellectual progress—just find the right facts and all problems will dissipate. But barriers are often deeper and more abstract in thought. We must have access to the right metaphor, not only to the requisite information. Revolutionary thinkers are not, primarily, gatherers of facts, but weavers of new intellectual structures.”

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Stephen Jay Gould livro The Flamingo's Smile

"For Want of a Metaphor", p. 151
The Flamingo's Smile (1985)

“The solution, as all thoughtful people recognize, must lie in properly melding the themes of inborn predisposition and shaping through life's experiences. This fruitful joining cannot take the false form of percentages adding to 100—as in “intelligence is 80 percent nature and 20 percent nurture,” or “homosexuality is 50 percent inborn and 50 percent learned,” and a hundred other harmful statements in this foolish format. When two ends of such a spectrum are commingled, the result is not a separable amalgam (like shuffling two decks of cards with different backs), but an entirely new and higher entity that cannot be decomposed”

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Stephen Jay Gould livro Dinosaur in a Haystack

just as adults cannot be separated into maternal and paternal contributions to their totality
"The Monster's Human Nature", p. 60
Dinosaur in a Haystack (1995)