Know or listen to those who know.
To know oneself, one should assert oneself.
Leap, and the net will appear.
The most effective way to do it, is to do it.
Be gentle to all and stern with yourself.
Either you run the day or the day runs you.
You never know what motivates you.
Quality is not an act, it is a habit.
After a storm comes a calm.
If you're going through hell, keep going.
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.