It's always too early to quit.

Either you run the day or the day runs you.

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

Never complain and never explain.

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

To know oneself, one should assert oneself.

Be kind whenever possible. It is always possible.

Without hard work, nothing grows but weeds.

Know or listen to those who know.