I can, therefore I am.
Be thine own palace, or the world's thy jail.
The wise does at once what the fool does at last.
The secret of getting ahead is getting started.
Know or listen to those who know.
What you do today can improve all your tomorrows.
To be a good loser is to learn how to win.
You never know what motivates you.
Leap, and the net will appear.
Never complain and never explain.
Why fear death? It is the most beautiful adventure in life.
When you consider all the stars I have managed, mere submarines make me smile.