Life is self-fulfilling prophecy.
You must learn from your past mistakes, but not lean on your past successes.
It is a psychological fact that we cherish most what we have worked hardest to gain. The further we have come, the sweeter the celebration at the destination when we arrive.
Wealth is only a source of happiness when it is used to do good for others
Put up the dream. Put in the knowledge. Put out the effort.
Be a role model not a critic. Don't tell your children, your peers, or your subordinates what to do - show them. And when the lesson is over, keep showing them by demonstrating that your actions are part of your character, not part of their curriculum.