It is hard to fight against anger: to master it is the mark of a rational man.
Nothing exists except atoms and empty space; everything else is opinion.
It is hard to fight desire; but to control it is the sign of a reasonable man.
The wise man’s home is the universe.
I would rather discover one true cause than gain the kingdom of Persia.
Good breeding in cattle depends on physical health, but in men on a well-formed character.