Truth and justice are the immutable laws of social order.

- Pierre-Simon Laplace

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

- Pierre-Simon Laplace

Probability theory is nothing but common sense reduced to calculation.

- Pierre-Simon Laplace

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

- Pierre-Simon Laplace

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

- Pierre-Simon Laplace

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

- 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.

- 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 wh…

- Pierre-Simon Laplace

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

- Pierre-Simon Laplace