Well done is better than well said.
Be kind whenever possible. It is always possible.
I can, therefore I am.
Know or listen to those who know.
Never complain and never explain.
What you do today can improve all your tomorrows.
Always desire to learn something useful.
Wherever you are - be all there.
The dog that trots about finds a bone.
If you've got a talent, protect it.
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.