If you want the present to be different from the past, study the past.

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

A free man, who lives among ignorant people, tries as much as he can to refuse their benefits. .. He who lives under the guidance of reason endeavours as much as possible to repay his fellow's hatred, rage, contempt, etc. with love and nobleness.

To comprehend an idea, a person must simultaneously accept it as true. Conscious analysis - which, depending on the idea, may occur almost immediately or with considerable effort - allows the mind to reject what it intially accepted as fact.

. . . to know the order of nature, and regard the universe as orderly is the highest function of the mind.

The mind can only imagine anything, or remember what is past, while the body endures.

I do not presume that I have found the best philosophy, I know that I understand the true philosophy.