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.

To know oneself, one should assert oneself.

Leap, and the net will appear.

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

If you think you can do it, you can.

Expect problems and eat them for breakfast.

By failing to prepare, you are preparing to fail.