Be thine own palace, or the world's thy jail.
If you think you can do it, you can.
Wherever you are - be all there.
What you do today can improve all your tomorrows.
If you've got a talent, protect it.
Do not weep do not wax indignant. Understand.
I can, therefore I am.
The secret of getting ahead is getting started.
Be gentle to all and stern with yourself.
Expect problems and eat them for breakfast.
I wrote somewhere during the Cold War that I sometimes wish the Iron Curtain were much taller than it is, so that you could see whether the development of science with no communication was parallel on the two sides. In this case it certainly wasn't.