Only a monomaniac gets anything done.
Without the sense of fellowship with men of like mind... life would have seemed to me empty.
I have remained a simple fellow who asks nothing of the world; only my youth is gone - the enchanting youth that forever walks on air.
Genius is making complex ideas simple, not making simple ideas complex
Knowledge is dead; the school, however, serves the living.
Condemnation without investigation is the height of ignorance