Work harder on yourself than you do on your job.
You may not be able to do all you find out, but make sure you find out all you can do.
Confronting and overcoming challenges is an exhilarating experience. It does something to feed the soul and the mind. It makes you more than you were before. It strengthens the mental muscles and enables you to become better prepared for the next challenge.
By working hard, you get to play hard guilt-free.
Don't join an easy crowd; you won't grow.
No one else 'makes us angry.' We make ourselves angry when we surrender control of our attitude. What someone else may have done is irrelevant. We choose, not they. They merely put our attitude to a test.