The development of computational complexity theory has shown us that not all problems are created equal.

出自《抱朴子·广譬》。想要获得人心，一定要先对自己真诚。之所以会失去人心，是因为先失去了自己的心。

Paint with your heart, and your hands will follow.

爱是一种痛苦。如果你感觉不到痛苦，那就不是爱。