I can, therefore I am.
Well done is better than well said.
Who seeks shall find.
To be a good loser is to learn how to win.
Always desire to learn something useful.
Be gentle to all and stern with yourself.
Quality is not an act, it is a habit.
If you can dream it, you can do it.
After a storm comes a calm.
If you're going through hell, keep going.
The scientist is motivated primarily by curiosity and a desire for truth.
Science, almost from its beginnings, has been truly international in character. National prejudices disappear completely in the scientist's search for truth.