Be thine own palace, or the world's thy jail.
To know oneself, one should assert oneself.
Leap, and the net will appear.
Who seeks shall find.
What you do today can improve all your tomorrows.
After a storm comes a calm.
Be gentle to all and stern with yourself.
I can, therefore I am.
Only the educated are free.
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.