真正的朋友是能看到你眼中痛苦的人,而其他人都只相信你脸上的笑容。
The universe is a free lunch.
你知道得越多,就越意识到你不知道的越多。
"There is no such thing as a new idea. It is impossible. We simply take a lot of old ideas and put them into a sort of mental kaleidoscope. We give them a turn and they make new and curious combinations."