心理事件确实无法以其真实本质被我们认知，而只能通过其效应来了解。

Writing is a way of questioning the world, of trying to understand it.

我们这些幸运的人有责任回馈社会。至于是像我这样边走边捐，还是像沃伦那样先捐一点，然后（死后）再捐很多，这是个人喜好问题。

The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is a finite problem.