It's always too early to quit.
Be thine own palace, or the world's thy jail.
If you've got a talent, protect it.
To be a good loser is to learn how to win.
Go for it now. The future is promised to no one.
Without hard work, nothing grows but weeds.
Be kind whenever possible. It is always possible.
By failing to prepare, you are preparing to fail.
Well done is better than well said.
What you do today can improve all your tomorrows.
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.