Nothing exists except atoms and empty space; everything else is opinion.
No power and no treasure can outweigh the extension of our knowledge.
We know nothing in reality; for truth lies in an abyss.
Men have made an idol of luck as an excuse for their own thoughtlessness.
Tis hard to fight with anger but the prudent man keeps it under control.
Good breeding in cattle depends on physical health, but in men on a well-formed character.