Wherever you are - be all there.
Problems are not stop signs, they are guidelines.
Expect problems and eat them for breakfast.
If you can dream it, you can do it.
Never complain and never explain.
Things do not happen. Things are made to happen.
Be kind whenever possible. It is always possible.
It's always too early to quit.
To be a good loser is to learn how to win.
Go for it now. The future is promised to no one.
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.