Theory is gray， and the tree of life evergreen.
理论是灰色的，而生活之树常青。
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.
科学研究要解决实际问题，不能只停留在论文上。
If you’re not failing occasionally, you’re not pushing the boundaries enough.
I never saw a wild thing sorry for itself. A small bird will drop frozen dead from a bough without ever having felt sorry for itself.