Men will cease to be fools only when they cease to be men.

Whatever a poet writes with enthusiasm and a divine inspiration is very fine. Earliest reference to the madness or divine inspiration of poets.

Virtue isn't not wronging others but not wishing to wrong others.

The first principles of the universe are atoms and empty space; everything else is merely thought to exist.

We know nothing in reality; for truth lies in an abyss.

The person who can laugh with life has developed deep roots with confidence and faith-faith in oneself, in people and in the world, as contrasted to negative ideas with distrust and discouragement.

Medicine heals diseases of the body, wisdom frees the soul from passions.