You never know what motivates you.
It's always too early to quit.
The most effective way to do it, is to do it.
What you do today can improve all your tomorrows.
To be a good loser is to learn how to win.
Leap, and the net will appear.
Never complain and never explain.
Either you run the day or the day runs you.
The secret of getting ahead is getting started.
Expect problems and eat them for breakfast.
In science there is only physics all the rest is stamp collecting.