Go for it now. The future is promised to no one.
Be gentle to all and stern with yourself.
You never know what motivates you.
What you do today can improve all your tomorrows.
To be a good loser is to learn how to win.
Never complain and never explain.
By failing to prepare, you are preparing to fail.
It's always too early to quit.
If you're going through hell, keep going.
The wise does at once what the fool does at last.
A good teacher must be able to put himself in the place of those who find learning hard.