It's always too early to quit.
Well done is better than well said.
Who seeks shall find.
To be a good loser is to learn how to win.
After a storm comes a calm.
The wise does at once what the fool does at last.
The most effective way to do it, is to do it.
Be thine own palace, or the world's thy jail.
Know or listen to those who know.
If you can dream it, you can do it.
Science is a differential equation. Religion is a boundary condition.