Are the laws of acceleration and composition of forces nothing but arbitrary conventions? Conventions, yes; arbitrary, no; they would seem arbitrary … - Henri Poincaré

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Are the laws of acceleration and composition of forces nothing but arbitrary conventions? Conventions, yes; arbitrary, no; they would seem arbitrary if we forgot the experiences which guided the founders of science to their adoption and which are, although imperfect, sufficient to justify them. Sometimes it is useful to turn our attention to the experimental origin of these conventions.

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About Henri Poincaré

Jules Henri Poincaré (29 April 1854 – 17 July 1912), generally known as Henri Poincaré, was one of France's greatest mathematicians and theoretical physicists, and a philosopher of science.

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Also Known As

Alternative Names: Jules Henri Poincare Henri Poincare Poincare Jules Henri Poincaré Poincaré
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Мысль никогда не должна подчиняться ни догме, ни направлению, ни страсти, ни интересу, ни предвзятой идее, ни чему бы то ни было, кроме фактов, потому что для нее подчинится — значило бы перестать существовать.

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Behold... the only... [rule] we can follow: when a phenomenon appears... as the cause of another, we regard it as anterior. ...[T]herefore by cause... we define time; but...how do we recognize which is the cause and which the effect? We assume... the anterior fact, the antecedent, is the cause of the... consequent. It is then by time that we define cause. ...[S]hall we escape from this vicious circle?

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