If you're going through hell, keep going.
I can, therefore I am.
Who seeks shall find.
It's always too early to quit.
Quality is not an act, it is a habit.
The most effective way to do it, is to do it.
Be gentle to all and stern with yourself.
Only the educated are free.
Know or listen to those who know.
After a storm comes a calm.
In those early years in New York when I was a stranger in a big city, it was the companionship and later friendship which I was offered in the Linnean Society that was the most important thing in my life.