"He who doesn't lose his wits over certain things has no wits to lose" — Gotthold Ephraim Lessing

The hours of a wise man are lengthened by his ideas

Talking with a friend is nothing else but thinking aloud

Reading is to the mind what exercise is to the body

Nothing is more gratifying to the mind of man than power or dominion

Our disputants put me in mind of the scuttle fish, that when he is unable to extricate himself, blackens all the water about him, till he becomes invisible

Who knows, the mind has the key to all things besides

Quote

More about mind