There is something profoundly mysterious about quantum mechanics that we still don't understand.
"You can't go back and change the beginning, but you can start where you are and change the ending."
你无法回到过去改变开头，但可以从现在开始改变结局。
有些事情发生了却没有留下可察觉的痕迹，没有被谈论或记录下来，尽管如果说后续事件漠不关心地继续下去，就好像这些事情从未发生过一样，那是非常错误的。
A good mathematician is lazy, but in a constructive way.
Safety is the greatest benefit, accidents are the biggest waste.
艺术的功能是使不可见的东西变得可见。