Expect problems and eat them for breakfast.
To know oneself, one should assert oneself.
Wherever you are - be all there.
Know or listen to those who know.
It's always too early to quit.
Never complain and never explain.
Only the educated are free.
Problems are not stop signs, they are guidelines.
Always desire to learn something useful.
Either you run the day or the day runs you.
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.