To know oneself, one should assert oneself.
Who seeks shall find.
The wise does at once what the fool does at last.
Expect problems and eat them for breakfast.
Well done is better than well said.
Things do not happen. Things are made to happen.
If you can dream it, you can do it.
Problems are not stop signs, they are guidelines.
Be kind whenever possible. It is always possible.
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.