To know oneself, one should assert oneself.

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

If you think you can do it, you can.

Never complain and never explain.

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

By failing to prepare, you are preparing to fail.

The wise does at once what the fool does at last.

If you've got a talent, protect it.

The secret of getting ahead is getting started.