The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
My stomach is a knot of sorrow and anger, but I keep smiling.
Be thankful for what you have; you’ll end up having more. If you concentrate on what you don’t have, you will never, ever have enough.
入门统计学课本一开始讲的几个要点之一,就是相关性不是因果性。这也是最先被忘记的要点之一。