It's always too early to quit.
The dog that trots about finds a bone.
Be thine own palace, or the world's thy jail.
You never know what motivates you.
Begin to be now what you will be hereafter.
What you do today can improve all your tomorrows.
Know or listen to those who know.
Always desire to learn something useful.
The secret of getting ahead is getting started.
Be gentle to all and stern with yourself.
The whole business of marshaling one's energies becomes more and more important as one grows older.