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.
文学的力量在于它能够将我们带到其他世界，让我们通过他人的眼睛看世界。
数学家研究纯数学不是因为它有用；他研究它是因为他喜欢它，他喜欢它是因为它美丽。
All human beings have three lives: public, private, and secret.
In science, we must be open to the possibility that our most cherished theories could be wrong.