Quality is not an act, it is a habit.
If you've got a talent, protect it.
Be gentle to all and stern with yourself.
Go for it now. The future is promised to no one.
To be a good loser is to learn how to win.
Things do not happen. Things are made to happen.
I can, therefore I am.
Problems are not stop signs, they are guidelines.
It's always too early to quit.
What you do today can improve all your tomorrows.
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.