The thing about happiness is that you only know you had it when it's gone.
毀滅自己的錯(cuò)誤勝過(guò)毀滅他人的錯(cuò)誤。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
我們所知的物理定律可能只是更大定律集合中的一小部分。