I can, therefore I am.

Do not weep do not wax indignant. Understand.

If you can dream it, you can do it.

If you think you can do it, you can.

It's always too early to quit.

To be a good loser is to learn how to win.

Be thine own palace, or the world's thy jail.

To know oneself, one should assert oneself.

Well done is better than well said.