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.

我不喜欢赌博，但如果有一件事我愿意赌，那就是我自己。

什么是成功？我认为这是对你所做的事情有一种天赋的混合；知道这还不够，你必须努力工作并有一定的目标感。

As in geometry the most natural way of beginning is from a mathematical point, so is the same method in observations and natural history the most genuine, simple, and instructive.