You never know what motivates you.
Be thine own palace, or the world's thy jail.
If you've got a talent, protect it.
Wherever you are - be all there.
To know oneself, one should assert oneself.
Things do not happen. Things are made to happen.
If you think you can do it, you can.
Always desire to learn something useful.
Who seeks shall find.
The secret of getting ahead is getting started.
I think America has more than enough maturity and intelligence to start exercising its world leadership responsibly.