Not flattered by praise, not hurt by blame.
Our great grandteacher, Man Gong Sunim, was once asked, "Why don't more people practice Zen?" He said, "Everybody wants a good thing, but most people don't understand that when you get a good thing you also get a bad thing. If they understood that, then they would practice Zen."
So our life is not about getting good things and avoiding bad things. It is about attaining how to correctly use each thing that appears. Good things come, we use them to go the correct way; bad things come, we use them to go the correct way.