What you do today can improve all your tomorrows.
Be kind whenever possible. It is always possible.
It's always too early to quit.
Problems are not stop signs, they are guidelines.
Either you run the day or the day runs you.
To be a good loser is to learn how to win.
If you've got a talent, protect it.
The secret of getting ahead is getting started.
Never complain and never explain.
Quality is not an act, it is a habit.
Triumphant science and technology are only at the threshold of man's command over sources of energy so stupendous that, if used for military purposes, they can wipe out our entire civilization.