可持续性不仅仅是保护环境，更是创造一个对所有人都有利的系统。

时光飞逝，应珍惜每一刻。

I have to be alone very often. I’d be quite happy if I spent from Saturday night until Monday morning alone in my apartment. That’s how I refuel.

价格被遗忘后，质量仍会被长久记住。

A key insight in learning theory is that the complexity of a hypothesis class is crucial for generalization.