译文：善于创始的人不一定完成得很好，有个好开头的人不一定有好结果。

人们并不愚蠢，只是世界很复杂。

The art of competing, I’d learned from track, was the art of forgetting, and I now reminded myself of that fact. You must forget your limits. You must forget your doubts, your pain, your past.

天下很多所谓可以做的事情，未必都是可以做的啊！