体无定用，惟变是用。用无定体，惟化是体。
事物的变化是其本质特征，适应变化是智慧。
I don't listen to what people say. I just go out there and do my best.
It has yet to be proven that intelligence has any survival value.
The past is not dead; it is not even past.
The best way to reduce costs is to not have them in the first place.