I don't know. Sometimes when I feel about to cry, it often evolves into an impulse to almost laugh. That must have been how I really felt at the time, because I laughed, almost giggled.

在我一生中，我从未见过不经常阅读的智者——没有，一个也没有。

科学不仅仅是寻找答案，更是提出正确的问题。