I can, therefore I am.

Be gentle to all and stern with yourself.

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

Well done is better than well said.

The dog that trots about finds a bone.

To know oneself, one should assert oneself.

What you do today can improve all your tomorrows.

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

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