Reality is a question of perspective; the further you get from the past, the more concrete and plausible it seems.
做好准备。当你完成任何大型项目(房子、电影、活动、App)的90%时,其余无数的细节将需要第二个90%来完成。
现代物理学的挑战不仅在于找到答案,还在于提出正确的问题。