Many people — I guarantee you know at least a few — see success as a zero-sum game: There's only so much to go around. When someone else shines, they think that diminishes the light from their stars!!
Resentment sucks up a massive amount of mental energy — energy better applied elsewhere.
When a friend does something awesome, that doesn't preclude you from doing something awesome. In fact where success is concerned, birds of a feather tend to flock together — so draw your unsuccessful friends even closer.
Don't resent awesomeness. Create and celebrate awesomeness, wherever you find it, and in time you'll find even more of it in yourself.
- Jeff Haden (modified by Amr Badran)