Buy low and sell high. It's pretty simple. The problem is knowing what's low and what's high.
投资就是低买高卖，相当简单。问题是要知道什么是低，什么是高。
每个角色都是一个世界，而每个世界都是一个疑问。
You don't love because: you love despite; not for the virtues, but despite the faults.
生命中最美好的不是事物，而是时刻和情感。
The joy of discovery is what drives mathematicians forward.