When all is said and done, the weather and love are the two elements about which one can never be sure.
Doubt 'til thou canst doubt no more...doubt is thought and thought is life. Systems which end doubt are devices for drugging thought.
Never read a book through merely because you have begun it.
One thing I've learned in all these years is not to make love when you really don't feel it; there's probably nothing worse you can do to yourself than that.
The price one pays for pursuing any profession or calling is an intimate knowledge of its ugly side.
The freedom of all is essential to my freedom.
The reasonable man adapts himself to the world; the unreasonable one persists in trying to adapt the world to himself. Therefore, all progress depends on the unreasonable man.