It's always too early to quit.

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

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.

If you've got a talent, protect it.

Do not weep do not wax indignant. Understand.

Be gentle to all and stern with yourself.

Expect problems and eat them for breakfast.