不要走在我后面，因为我可能不会引路；不要走在我前面，因为我可能不会跟随；请走在我的身边，做我的朋友。
The only secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards.
The past is never dead. It's not even past.
我感激在球场上的每一刻。
True innovation in science often comes from developing tools that let us see the world in completely new ways.