Either you run the day or the day runs you.
If you've got a talent, protect it.
What you do today can improve all your tomorrows.
It's always too early to quit.
The wise does at once what the fool does at last.
By failing to prepare, you are preparing to fail.
Without hard work, nothing grows but weeds.
Be kind whenever possible. It is always possible.
Things do not happen. Things are made to happen.
Do not weep do not wax indignant. Understand.
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.