"I have seen so many people ruin their lives because they couldn't stand the idea that someone else was making money faster than they were.
Envy is a totally useless emotion. It doesn't feel good, it doesn't help you make better decisions, and it drives you to take absurd risks just to keep up appearances.
If you can eliminate envy from your mind and focus strictly on your own path, you eliminate one of the biggest sources of human misery."
- Charlie Munger