Be true to yourself, help others, make each day your masterpiece, make friendship a fine art, drink deeply from good books - especially the Bible, build a shelter against a rainy day, give thanks for your blessings and pray for guidance every day.
Don't give up on your dreams, or your dreams will give up on you.
It isn't what you do, but how you do it.
If you don't have time to do it right, when will you have time to do it over?
Be more concerned with your character than your reputation.
I think the teaching profession contributes more to the future of our society than any other single profession.