物理学的美丽在于它能够用简单解释复杂。
译文:事前不研讨,遇变难以应对;军队不训练,作战难以取胜。强调未雨绸缪的重要性。
If you go back a few hundred years, what we take for granted today would seem like magic—being able to talk to people over long distances, to transmit images, flying, accessing vast amounts of data like an oracle. These are all things that would have been considered magic a few hundred years ago.