Expect problems and eat them for breakfast.
Who seeks shall find.
After a storm comes a calm.
Be thine own palace, or the world's thy jail.
Either you run the day or the day runs you.
Go for it now. The future is promised to no one.
Problems are not stop signs, they are guidelines.
The dog that trots about finds a bone.
It's always too early to quit.
Always desire to learn something useful.
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.