Know or listen to those who know.

Begin to be now what you will be hereafter.

It's always too early to quit.

The dog that trots about finds a bone.

Do not weep do not wax indignant. Understand.

Never complain and never explain.

The secret of getting ahead is getting started.

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

To know oneself, one should assert oneself.