To know oneself, one should assert oneself.

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

Never complain and never explain.

Without hard work, nothing grows but weeds.

Be gentle to all and stern with yourself.

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

The dog that trots about finds a bone.

I can, therefore I am.

By failing to prepare, you are preparing to fail.