Continuity in everything is unpleasant.

Continuous eloquence wearies.

The least movement is of importance to all nature. The entire ocean is affected by a pebble.

Let no one say that I have said nothing new... the arrangement of the subject is new. When we play tennis, we both play with the same ball, but one of us places it better.

Who confers reputation? who gives respect and veneration to persons, to books, to great men? Who but Opinion? How utterly insufficient are all the riches of the world without her approbation!

All our reasoning boils down to yielding to sentiment.

I can well conceive a man without hands, feet, head. But I cannot conceive man without thought; he would be a stone or a brute.