Pierre-Simon Laplace Quotes - Page 2

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• Je n'avais pas besoin de cette hypothèse-là.

  Pierre-Simon Laplace

  Atheist

  9 Copy quote

• I see with much pleasure that you are working on a large work on the integral Calculus ... The reconciliation of the methods which you are planning to make, serves to clarify them mutually, and what they have in common contains very often their true metaphysics; this is why that metaphysics is almost the last thing that one discovers. The spirit arrives at the results as if by instinct; it is only on reflecting upon the route that it and others have followed that it succeeds in generalising the methods and in discovering its metaphysics.

  Pierre-Simon Laplace

  Science, Reflecting Upon, Lasts

  "Convolutions in French Mathematics, 1800-1840:From the Calculus and Mechanics to Mathematical Analysis and Mathematical Physics. Vol.1: The Setting". Book by Grattan-Guinness, p. 139, July 1, 1990.

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• Without any doubt, the regularity which astronomy shows us in the movements of the comets takes place in all phenomena. The trajectory of a simple molecule of air or vapour is regulated in a manner as certain as that of the planetary orbits; the only difference between them is that which is contributed by our ignorance. Probability is relative in part to this ignorance, and in part to our knowledge.

  Pierre-Simon Laplace

  Ignorance, Knowledge, Science

  Pierre-Simon Laplace (2012). “Pierre-Simon Laplace Philosophical Essay on Probabilities: Translated from the fifth French edition of 1825 With Notes by the Translator”, p.3, Springer Science & Business Media

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• We are so far from knowing all the forces of nature and their various modes of action that it would be unworthy of the philosopher to deny phenomena simply because they are inexplicable at the present state of our knowledge. The more difficult it is to acknowledge their existence, the greater the care with which we must study these phenomena.

  Pierre-Simon Laplace

  Philosophical, Knowing, Would Be

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• Such is the advantage of a well constructed language that its simplified notation often becomes the source of profound theories.

  Pierre-Simon Laplace

  Math, Profound, Language

  7 Copy quote

• The simplicity of the law by which the celestial bodies move, and the relations of their masses and distances, permit analysis to follow their motions up to a certain point; and in order to determine the state of the system of these great bodies in past or future centuries, it suffices for the mathematician that their position and their velocity be given by observation for any moment in time.

  Pierre-Simon Laplace

  Distance, Moving, Science

  7 Copy quote

• [It] may be laid down as a general rule that, if the result of a long series of precise observations approximates a simple relation so closely that the remaining difference is undetectable by observation and may be attributed to the errors to which they are liable, then this relation is probably that of nature.

  Pierre-Simon Laplace

  Nature, Science, Simple

  5 Copy quote

• The mind has its illusions as the sense of sight; and in the same manner that the sense of feeling corrects the latter, reflection and calculation correct the former.

  Pierre-Simon Laplace

  Science, Reflection, Sight

  Pierre-Simon Laplace (2012). “A Philosophical Essay on Probabilities”, p.115, Courier Corporation

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• [Science] dissipates errors born of ignorance about our true relations with nature, errors the more damaging in that the social order should rest only on those relations. TRUTH! JUSTICE! Those are the immutable laws. Let us banish the dangerous maxim that it is sometimes useful to depart from them and to deceive or enslave mankind to assure its happiness.

  Pierre-Simon Laplace

  Ignorance, Science, Errors

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• However, the small probability of a similar encounter [of the earth with a comet], can become very great in adding up over a huge sequence of centuries. It is easy to picture to oneself the effects of this impact upon the Earth. The axis and the motion of rotation changed; the seas abandoning their old position to throw themselves toward the new equator; a large part of men and animals drowned in this universal deluge, or destroyed by the violent tremor imparted to the terrestrial globe.

  Pierre-Simon Laplace

  Science, Animal, Men

  7 Copy quote

• I have no need for that hypothesis.

  Pierre-Simon Laplace

  Needs, Hypothesis

  Quoted in Augustus De Morgan, A Budget of Paradoxes (1872).

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• Said about Napier's logarithms: . . . by shortening the labors doubled the life of the astronomer.

  Pierre-Simon Laplace

  Life, Astronomers, Said

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• It is interesting thus to follow the intellectual truths of analysis in the phenomena of nature. This correspondence, of which the system of the world will offer us numerous examples, makes one of the greatest charms attached to mathematical speculations.

  Pierre-Simon Laplace

  Science, Law, Interesting

  7 Copy quote

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