He who smiles rather than rages is always the stronger.
Humor is an affirmation of dignity, a declaration of man's superiority to all that befalls him.
A smile is an inexpensive way to improve your looks.
Always laugh when you can. It is cheap medicine.
Do your best; take it as it comes. You can handle anything if you think you can. Just keep your cool and your sense of humor.
Gentlemen, why don't you laugh? With the fearful strain that is upon me night and day, if I did not laugh, I should die.
No man who has once heartily and wholly laughed can be altogether irreclaimably bad.
The most important thing I have learned over the years is the difference between taking one's work seriously and taking one's self seriously. The first is imperative, and the second disastrous.
The way to get things done is not to mind who gets the credit for doing them.
If a window of opportunity appears, don't pull down the shade.