A writer is a reader moved to emulation.

孔子说：“理想无法实现了，我准备乘筏漂到海上。会跟我走的，只有子路吧？”

There is a way to be good again.

Humans are allergic to change. They love to say, 'We've always done it this way.' I try to fight that. That's why I have a clock on my wall that runs counter-clockwise.

The complexity of a learning problem is often determined by the size and structure of the hypothesis space.

一个好的数学问题的定义是它产生的数学，而不是问题本身。