Be kind whenever possible. It is always possible.

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

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

The secret of getting ahead is getting started.

If you think you can do it, you can.

Well done is better than well said.

To know oneself, one should assert oneself.

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

Know or listen to those who know.