People start their lives at last when they are able to live for something other than themselves.
We can understand almost anything, but we can't understand how we understand.
The value of a man resides in what he gives
Man, surrounded by facts, permitting himself no surprise, no intuitive flash, no great hypothesis, no risk, is in a locked cell. Ignorance cannot seal the mind and imagination more securely.
As far as I'm concerned, I prefer silent vice to ostentatious virtue.
Be a voice not an echo.