If you think you can do it, you can.
Well done is better than well said.
By failing to prepare, you are preparing to fail.
It's always too early to quit.
Expect problems and eat them for breakfast.
To be a good loser is to learn how to win.
You never know what motivates you.
Wherever you are - be all there.
To know oneself, one should assert oneself.
The most effective way to do it, is to do it.
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.