To make mistakes is human, but to profit from them is divine.
A conservative is a man who is too cowardly to fight and too fat to run.
Insomnia never comes to a man who has to get up exactly at six o'clock. Insomnia troubles only those who can sleep any time.
Self-control is the ability to restrain a laugh at the wrong place.
A failure is a man who has blundered, but is not able to cash in the experience.
Genius may have its limitations, but stupidity is not thus handicapped.