„As result a new kind of theory to be applied on a class of motions … these geometric motions are that which acquire different parts of a system of bodies, without neither perturb themselves nor the other and consequently these motions do not depend of the action or reaction among the bodies, but only upon the conditions of their connections, and thus being determined only by geometry and not dependent of the rules of dynamics.“

—  Lazare Carnot, On geomatric motion. A History of the Work Concept: From Physics to Economics, by Agamenon Oliveira, p. 154.
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Lazare Carnot
político francês 1753 - 1823

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„Moreover, it must be confessed that perception and that which depends upon it are inexplicable on mechanical grounds, that is to say, by means of figures and motions.“

—  Gottfried Leibniz German mathematician and philosopher 1646 - 1716
The Monadology (1714), Context: Moreover, it must be confessed that perception and that which depends upon it are inexplicable on mechanical grounds, that is to say, by means of figures and motions. And supposing there were a machine, so constructed as to think, feel, and have perception, it might be conceived as increased in size, while keeping the same proportions, so that one might go into it as into a mill. That being so, we should, on examining its interior, find only parts which work one upon another, and never anything by which to explain a perception. Thus it is in a simple substance, and not in a compound or in a machine, that perception must be sought for. La monadologie (17).

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„I have lately spent some Thoughts relative to the Nature of Light, whether it be subject to the common Laws of Motion. In this particular Newton seems to contradict himself. For in his Principia Sect. 14th he applies the common Laws of Motion to account for Reflection and Refraction, as he does also in one Part of his Optics where he proves the Sine of Incid. to Sine Refr, in a given in a given Ratio. But in another Part he says, “nothing more is requisite for producing all the Variety of Colours and Degrees of Refrangibility than that the Rays of Light be Bodies of different Sizes, the least of which may make Violet, and the Greatest the Red"; this manifestly is not consistent with the Theory of Motion applied to Bodies, where the Magnitude of the Bodies is of no Consequence. Now it is evident that if the common Theory of Motion can be applied to Light, the Red Light must have had the greatest Velocity before Incidence, as it suffers the least Deviation, for if the Vels of all the Difft colour'd Light were equal before Incidence, they must by Newton's Principia Sect. Sect. 8. Prop. 1. have continued equal after, and therefore must have suffered the same Deviation. The Determination of this Point seems to be of considerable Importance, as we so often apply the Theory of Motion to Light.“

—  Samuel Vince British mathematician, astronomer and physicist 1749 - 1821
As quoted in: Russell McCormmach (2011) Weighing the World: The Reverend John Michell of Thornhill. p. 193

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„I tell you that if natural bodies have it from Nature to be moved by any movement, this can only be circular motion, nor is it possible that Nature has given to any of its integral bodies a propensity to be moved by straight motion. I have many confirmations of this proposition, but for the present one alone suffices, which is this. I suppose the parts of the universe to be in the best arrangement, so that none is out of its place, which is to say that Nature and God have perfectly arranged their structure. This being so, it is impossible for those parts to have it from Nature to be moved in straight, or in other than circular motion, because what moves straight changes place, and if it changes place naturally, then it was at first in a place preternatural to it, which goes against the supposition. Therefore, if the parts of the world are well ordered, straight motion is superfluous and not natural, and they can only have it when some body is forcibly removed from its natural place, to which it would then return by a straight line, for thus it appears that a part of the earth does [move] when separated from its whole. I said "it appears to us," because I am not against thinking that not even for such an effect does Nature make use of straight line motion.“

—  Galileo Galilei Italian mathematician, physicist, philosopher and astronomer 1564 - 1642
Letter to Francesco Ingoli (1624), A note on this statement is included by Stillman Drake in his Galileo at Work, His Scientific Biography (1981): Galileo adhered to this position in his Dialogue at least as to the "integral bodies of the universe." by which he meant stars and planets, here called "parts of the universe." But he did not attempt to explain the planetary motions on any mechanical basis, nor does this argument from "best arrangement" have any bearing on inertial motion, which to Galileo was indifference to motion and rest and not a tendency to move, either circularly or straight.

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„The value of material things depends upon the part they play in the life of the spirit. In themselves they are neither good nor bad.“

—  Meher Baba, livro Discourses
Discourses (1967), Vol. I, Context: The value of material things depends upon the part they play in the life of the spirit. In themselves they are neither good nor bad. They become good or bad according to whether they help or hinder the manifestation of Divinity through matter. Take for example the place of the physical body in the life of the spirit. It is a mistake to set up an antithesis between “flesh” and “spirit.” Such contrast almost inevitably ends in an unqualified condemnation of the body. The body obstructs spiritual fulfillment only if it is pampered as having claims in its own right. Its proper function is rightly understood as ancillary to spiritual purposes. The rider needs a horse if he is to fight a battle, though the horse can become an impediment if it refuses to be completely submissive to his will. In the same way the spirit needs to be clothed in matter if it is to come into full possession of its own possibilities, although the body can at times become a hindrance if it refuses to be compliant with the requirements of the spirit. If the body yields to the claims of the spirit as it should, it is instrumental in bringing down the kingdom of heaven on earth. It becomes a vehicle for the release of divine life, and when it subserves this purpose it might aptly be called the temple of God on earth. Ch. 15 : The Life of the Spirit

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„[Lewin formally defines a Gestalt as:] a system whose parts are dynamically connected in such a way that a change of one part results in a change of all other parts.“

—  Kurt Lewin German-American psychologist 1890 - 1947
1930s, Principles of topological psychology, 1936, p. 218, as cited in: Granville Stanley Hall, Edward Bradford Titchener, Karl M. Dallenbach (1937) The American journal of psychology. Vol. 50, p. 374.

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„After so many great men have worked on this subject, I almost do not dare to say that I have discovered the universal principle upon which all these laws are based, a principle that covers both elastic and inelastic collisions and describes the motion and equilibrium of all material bodies.
This is the principle of least action, a principle so wise and so worthy of the supreme Being, and intrinsic to all natural phenomena; one observes it at work not only in every change, but also in every constancy that Nature exhibits. In the collision of bodies, motion is distributed such that the quantity of action is as small as possible, given that the collision occurs. At equilibrium, the bodies are arranged such that, if they were to undergo a small movement, the quantity of action would be smallest.
The laws of motion and equilibrium derived from this principle are exactly those observed in Nature. We may admire the applications of this principle in all phenomena: the movement of animals, the growth of plants, the revolutions of the planets, all are consequences of this principle. The spectacle of the universe seems all the more grand and beautiful and worthy of its Author, when one considers that it is all derived from a small number of laws laid down most wisely. Only thus can we gain a fitting idea of the power and wisdom of the supreme Being, not from some small part of creation for which we know neither the construction, usage, nor its relationship to other parts. What satisfaction for the human spirit in contemplating these laws of motion and equilibrium for all bodies in the universe, and in finding within them proof of the existence of Him who governs the universe!“

—  Pierre Louis Maupertuis French mathematician, philosopher and man of letters 1698 - 1759
Les Loix du Mouvement et du Repos, déduites d'un Principe Métaphysique (1746)

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