Seeing that the Senses cannot decide our dispute, being themselves full of uncertainty, we must have recourse to Reason; there is no reason but must be built upon another reason: so here we are retreating backwards to infinity.

We trouble our life by thoughts about death, and our death by thoughts about life.

The world is but a perennial movement. All things in it are in constant motion-the earth, the rocks of the Caucasus, the pyramids of Egypt-both with the common motion and with their own.

Truly man is a marvelously vain, diverse, and undulating object. It is hard to found any constant and uniform judgment on him.

Eloquence is an engine invented to manage and wield at will the fierce democracy, and, like medicine to the sick, is only employed in the paroxysms of a disordered state.

This very Rome that we behold deserves our love ...: the only common and universal city.

How often our involuntary facial motions testify to the thoughts we were keeping secret, and betray us to those around!