创新不是从无到有，而是从有到更好。
Innovation is not from nothing to something, but from something to better.
除非你努力，否则梦想不会实现。
数学的本质在于它的自由。
Living is like tearing through a museum. Not until later do you really start absorbing what you saw, thinking about it, looking it up in a book, and remembering - because you can’t take it in all at once.
健康才是真正的财富，而不是金银。
夜晚最黑暗时，星星最明亮。