I have self-doubt. I have insecurity. I have nights when I show up at the arena and I’m like, ‘My back hurts, my feet hurt, my knees hurt. But, I just want to chill.’ We all have self-doubt. You don’t deny it, but you also don’t capitulate to it. You embrace it.
我会自我怀疑，我会缺乏安全感。很多夜晚，当我出现在比赛场时，我心里却嘀咕：“我的背好疼，我的脚好疼，我的膝盖好疼。但是我不会那么紧张。我们都会有缺乏自信的时候。你不应该否认这一事实，但是你不要向它屈服，你要敢于面对它。
多一些事实，少一些矫饰废话。
If you get up in the morning and think the future is going to be better, it is a bright day. Otherwise, it's not.
恐惧是迷信的根源，也是造成残忍的主要原因之一。 智慧始于征服恐惧。
自然实验是理解现实世界中因果关系的强大工具。