It's always too early to quit.
If you can dream it, you can do it.
Be gentle to all and stern with yourself.
To know oneself, one should assert oneself.
Only the educated are free.
Be thine own palace, or the world's thy jail.
Never complain and never explain.
If you've got a talent, protect it.
Quality is not an act, it is a habit.
If you're going through hell, keep going.
Eventually, I believe, current attempts to understand the mind by analogy with man-made computers that can perform superbly some of the same external tasks as conscious beings will be recognized as a gigantic waste of time.