The secret of success is learning how to use pain and pleasure instead of having pain and pleasure use you. If you do that, you’re in control of your life. If you don’t, life controls you.
眼睛不能同时看清楚两样东西，耳朵不能同时听清楚两种声音。
It's not what happens to us， but our response to what happens to us that hurts us.