It's always too early to quit.
The wise does at once what the fool does at last.
To be a good loser is to learn how to win.
Be thine own palace, or the world's thy jail.
What you do today can improve all your tomorrows.
Begin to be now what you will be hereafter.
The dog that trots about finds a bone.
The secret of getting ahead is getting started.
Leap, and the net will appear.
The most effective way to do it, is to do it.
In science there is only physics all the rest is stamp collecting.