Alterius non sit qui suus esse potest. (Let no man belong to another that can belong to himself.)

“Know that the philosopher has power over the stars, and not the stars over him.”

“All things are poisons, for there is nothing without poisonous qualities. It is…”

“Thoughts are free and subject to no rule. On them rests the freedom of man, and…”

“He who knows nothing, loves nothing. He who can do nothing understands nothing.…”