All the effects of Nature are only the mathematical consequences of a small number of immutable laws. Pierre-Simon Laplace

All the effects of Nature are only the mathematical consequences of a small number of immutable laws.

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

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.

Given for one instant an intelligence which could comprehend all the forces by which nature is animated and the respective positions of the beings which compose it, if moreover this intelligence were vast enough to submit these data to analysis, it would embrace in the same formula both the movements of the largest bodies in the universe and those of the lightest atom; to it nothing would be uncertain, and the future as the past would be present to its eye. Pierre-Simon Laplace

Given for one instant an intelligence which could comprehend all the forces by which nature is animated and the respective positions of the beings which compose it, if moreover this intelligence were vast enough to submit these data to analysis, it would embrace in the same formula both the movements of the largest bodies in the universe and those of the lightest atom; to it nothing would be uncertain, and the future as the past would be present to its eye.

Probability theory is nothing but common sense reduced to calculation. Pierre-Simon Laplace

Probability theory is nothing but common sense reduced to calculation.

To Napoleon on why his works on celestial mechanics make no mention of God: Your Highness, I have no need of this hypothesis. Pierre-Simon Laplace

To Napoleon on why his works on celestial mechanics make no mention of God: Your Highness, I have no need of this hypothesis.

What we know is not much. What we do not know is immense. Pierre-Simon Laplace

What we know is not much. What we do not know is immense.

Truth and justice are the immutable laws of social order. Pierre-Simon Laplace

Truth and justice are the immutable laws of social order.

His last words, according to De Morgan: Man follows only phantoms. Pierre-Simon Laplace

His last words, according to De Morgan: Man follows only phantoms.

Nature laughs at the difficulties of integration. Pierre-Simon Laplace

Nature laughs at the difficulties of integration.

The most important questions of life are indeed, for the most part, really only problems of probability. Pierre-Simon Laplace

The most important questions of life are indeed, for the most part, really only problems of probability.

It is India that gave us the ingenious method of expressing all numbers by means of ten symbols, each symbol receiving a value of position as well as an absolute value; a profound and important idea which appears so simple to us now that we ignore its true merit. But its very simplicity and the great ease which it has lent to computations put our arithmetic in the first rank of useful inventions; and we shall appreciate the grandeur of the achievement the more when we remember that it escaped the genius of Archimedes and Apollonius, two of the greatest men produced by antiquity. Pierre-Simon Laplace

It is India that gave us the ingenious method of expressing all numbers by means of ten symbols, each symbol receiving a value of position as well as an absolute value; a profound and important idea which appears so simple to us now that we ignore its true merit. But its very simplicity and the great ease which it has lent to computations put our arithmetic in the first rank of useful inventions; and we shall appreciate the grandeur of the achievement the more when we remember that it escaped the genius of Archimedes and Apollonius, two of the greatest men produced by antiquity.

The theory of probabilities is at bottom nothing but common sense reduced to calculus; it enables us to appreciate with exactness that which accurate minds feel with a sort of instinct for which of times they are unable to account. Pierre-Simon Laplace

The theory of probabilities is at bottom nothing but common sense reduced to calculus; it enables us to appreciate with exactness that which accurate minds feel with a sort of instinct for which of times they are unable to account.

Napoleon: You have written this huge book on the system of the world without once mentioning the author of the universe. Laplace: Sire, I had no need of that hypothesis. Later when told by Napoleon about the incident, Lagrange commented: Ah, but that is a fine hypothesis. It explains so many things. Pierre-Simon Laplace

Napoleon: You have written this huge book on the system of the world without once mentioning the author of the universe. Laplace: Sire, I had no need of that hypothesis. Later when told by Napoleon about the incident, Lagrange commented: Ah, but that is a fine hypothesis. It explains so many things.

What we know is not much. What we don't know is enormous. Pierre-Simon Laplace

What we know is not much. What we don't know is enormous.

The weight of evidence for an extraordinary claim must be proportioned to its strangeness. Pierre-Simon Laplace

The weight of evidence for an extraordinary claim must be proportioned to its strangeness.

Do you believe in god? I have no need for that hypothesis, he may be around though. Pierre-Simon Laplace

Do you believe in god? I have no need for that hypothesis, he may be around though.

Born: March 23, 1749

Died: March 5, 1827

Profession: Mathematician

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