牛马生着四足，这是天性；给马戴上笼头，给牛穿上鼻绳，就是人为。所以说，不要人为毁灭天性，不要用故意造作去毁灭天命，不要以德行去为名利殉葬，谨守天道勿使丧失，这就叫返归本真。

let everyone else call your idea crazy, just keep going, don't stop, don't even think about stopping until you get there, and don't give much think of where "there" is.

有人说人是理性的动物。我一生都在寻找可以支持这一说法的证据。

I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.

The dead don't stay where you put them.

创新不是对每件事都说“是”，而是对所有非关键特性说“不”。