To know oneself, one should assert oneself.
The most effective way to do it, is to do it.
Expect problems and eat them for breakfast.
Be kind whenever possible. It is always possible.
By failing to prepare, you are preparing to fail.
Only the educated are free.
It's always too early to quit.
If you've got a talent, protect it.
I can, therefore I am.
Begin to be now what you will be hereafter.
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.