I just finished listening to They Call Me Coach. Right at the beginning of the book, the coach spelled out the principles he followed, which were given to him by his father. I think those are lifelong principles that are good to follow. Never aging.
Good Principles To Live By
1. Be true to yourself.
2. Make each day your masterpiece.
3. Help others.
4. Drink deeply from good books, especially the bible.
5. Make friendship a fine art.
6. Build a shelter against a rainy day.
7. Pray for guidance, and give thanks for your blessing everyday.
ReferenceThey Call Me Coach, John Wooden