„Some philosophers have believed that a philosophical clarification of space also provided a solution of the problem of time. Kant presented space and time as analogous forms of visualization and treated them in a common chapter in his major epistemological work. Time therefore seems to be much less problematic since it has none of the difficulties resulting from multidimensionality. Time does not have the problem of mirror-image congruence, i. e., the problem of equal and similarly shaped figures that cannot be superimposed, a problem that has played some role in Kant's philosophy. Furthermore, time has no problem analogous to non-Euclidean geometry. In a one-dimensional schema it is impossible to distinguish between straightness and curvature. …A line may have external curvature but never an internal one, since this possibility exists only for a two-dimensional or higher continuum. Thus time lacks, because of its one-dimensionality, all those problems which have led to philosophical analysis of the problems of space.“

—  Hans Reichenbach, The Philosophy of Space and Time (1928, tr. 1957)
Hans Reichenbach photo
Hans Reichenbach
professor académico alemão 1891 - 1953

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—  Shimon Peres Israeli politician, 8th prime minister and 9th president of Israel 1923 - 2016
As quoted by Donald Rumsfeld in "Sharon's Victory" (link is to a preview, but the quote is in the first few visible lines) https://www.wsj.com/articles/SB981508176687515426, Wall Street Journal (7 February 2001)

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„Time is never a problem on the God level. Or space.“

—  Robert A. Heinlein, Job: A Comedy of Justice
Job: A Comedy of Justice (1984), Context: Time is never a problem on the God level. Or space. Whatever needed to deceive you was provided. But no more than that. That is the conservative principle in art at the God level. While I can't do it, not being at that level, I have seen a lot of it done. A skillful Artist in shapes and appearances does no more than necessary to create His effect.

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„A problem never exists in isolation; it is surrounded by other problems in space and time. The more of the context of a problem that a scientist can comprehend, the greater are his chances of finding a truly adequate solution.“

—  Russell L. Ackoff Scientist 1919 - 2009
1950s, The development of operations research as a science, 1956, Partly cited in: Jean-Marc Choukroun, Roberta Snow (1992) Planning for human systems: essays in honor of Russell L. Ackoff. p. 287.

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„Because of the fundamental character of these problems, and because Kant did not solve them, confronting them has been the most important challenge to philosophy ever since.“

—  Bryan Magee British politician 1930 - 2019
Confessions of a Philosopher (1997), Context: As Voltaire once remarked, "It is the privilege of the real genius, especially one who opens up a new path, to make great mistakes with impunity." The Copernican revolution brought about by Kant was, I think, the most important single turning point in the history of philosophy. For that reason there has been, ever since, a watershed in understanding between those who have taken his work on board and those who have not. For a good many of the problems he uncovered, the solutions he put forward have not stood the test of time, but his uncovering of the problems remains the most illuminating thing a philosopher has ever done. Because of the fundamental character of these problems, and because Kant did not solve them, confronting them has been the most important challenge to philosophy ever since. p. 157

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„I believe it will take time to find a solution to the problem. Thus we must have patience.“

—  Boutros Boutros-Ghali 6th Secretary-General of the United Nations 1922 - 2016
1990s, On the Bosnian War, as quoted in Welcome to Sarajevo (1997)

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„How it happened that I in particular discovered the relativity theory, it seemed to lie in the following circumstance. The normal adult never bothers his head about space-time problems. Everything there is to be thought about it, in his opinion, has already been done in early childhood. I, on the contrary, developed so slowly that I only began to wonder about space and time when I was already grown up. In consequence I probed deeper into the problem than an ordinary child would have done.“

—  Albert Einstein German-born physicist and founder of the theory of relativity 1879 - 1955
Attributed in posthumous publications, In Carl Seelig's Albert Einstein: A Documentary Biography (1956), Seelig reports that Einstein said this to James Franck, p. 71 http://books.google.com/books?id=VCbPAAAAMAAJ&q=%22how+it+happened%22#search_anchor. I sometimes ask myself how did it come that I was the one to develop the theory of relativity. The reason, I think, is that a normal adult never stops to think about problems of space and time. But my intellectual development was retarded, as a result of which I began to wonder about space and time only when I had already grown up. Naturally, I could go deeper into the problem than a child with normal abilities. Variant translation which appears in Einstein: The Life and Times by Ronald W. Clark (1971), p. 27 http://books.google.com/books?id=6IKVA0lY6MAC&lpg=PP1&pg=PA27#v=onepage&q&f=false

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„Explanations exist; they have existed for all time; there is always a well-known solution to every human problem — neat, plausible, and wrong.“

—  H.L. Mencken, Prejudices: Second Series
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„Lorem ipsum dolor sit amet, consectetuer adipiscing elit. Etiam egestas wisi a erat. Morbi imperdiet, mauris ac auctor dictum.“