There is nothing so far removed from us as to be beyond our reach, or so hidden that we cannot discover it.

A state is better governed which has few laws, and those laws strictly observed.

Perfect numbers like perfect men are very rare.

The principal use of prudence, of self-control, is that it teaches us to be masters of our passions, and to so control and guide them that the evils which they cause are quite bearable, and that we even derive joy from them all.

Intuition is the undoubting conception of a pure and attentive mind, which arises from the light of reason alone, and is more certain than deduction.

If I found any new truths in the sciences, I can say that they follow from, or depend on, five or six principal problems which I succeeded in solving and which I regard as so many battles where the fortunes of war were on my side.

Thus each truth discovered was a rule available in the discovery of subsequent ones.