唯一的限制是你给自己设下的限制。
The only limits that exist are the ones you place on yourself.
过去从未死去。它甚至不是过去。
Nature has placed mankind under the governance of two sovereign masters, pain and pleasure.
除非你相信对世界的知识以及由此产生的力量对人类具有内在价值,否则你不可能成为科学家。
In man-machine symbiosis, it is man who must adjust: The machines can't.