Desire is the essence of a man.

One and the same thing can at the same time be good, bad, and indifferent, e.g., music is good to the melancholy, bad to those who mourn, and neither good nor bad to the deaf.

Peace is not an absence of war, it is a virtue, a state of mind, a disposition for benevolence, confidence, justice.

The greatest pride, or the greatest despondency, is the greatest ignorance of one's self.

We feel and know that we are eternal.

Whatsoever is contrary to nature is contrary to reason, and whatsoever is contrary to reason is absurd.