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.

Battery swapping must make recharging more convenient than refueling.

有时候正确的道路并不是最容易的那条。

Education is a lamp, but too many never find the switch.

在计算学习的背景下，“可能近似正确”（PAC）学习的概念为理解学习算法的效率和可行性提供了一个框架。