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.

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

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

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

What we know here is very little, but what we are ignorant of is immense.

Nature laughs at the difficulties of integration.

Read Euler, read Euler. He is the master of us all.