“The walls of Athens are impregnable, Their firmest bulwarks her heroic sons.”

— Aeschylus, The Persians, line 349 (tr. Robert Potter, 1777)

About Aeschylus

525 BC – 456 BC

Ancient Greek tragedian, author of "Prometheus Bound" and the "Oresteia".

“Time waxing old can many a lesson teach.”

“But when a man speeds toward his own ruin, a god gives him help.”

“Arrogance in full bloom bears a crop of ruinous folly from which it reaps a harvest all of tears.”

“He is a wise man who does not grieve for the things which he has not, but rejoices for those which he has.”

Attribution note: Source disputed or unverified.

“Knowing yourself is the beginning of all wisdom.”

Attribution note: Source disputed or unverified.

“Yesterday I was clever, so I wanted to change the world. Today I am wise, so I am changing myself.”

“He who knows others is wise; he who knows himself is enlightened.”

Attribution note: Source disputed or unverified.

“The man who asks a question is a fool for a minute, the man who does not ask is a fool for life.”

“The truth is rarely pure and never simple.”