计算学习理论中的一个关键见解是，学习问题的复杂性由假设空间的复杂性和可用数据的数量决定。

If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

The state is not a work of art; it is a necessity.

我不是说唱歌手，我是一个制作的传奇。

电池不仅仅是设备，更是清洁未来的推动者。