Life is pleasant. Death is peaceful. It's the transition that's troublesome.

出自北齐·颜之推《颜氏家训·勉学篇》。秉，持、拿。犹，还。贤乎，胜于。少年时代就好学，就像是早上初升的太阳之光；老来才知道虚心向学，就像是拿着蜡烛走在暗夜中。尽管如此，还是比闭着眼睛什么也看不到要强多了。意在鼓励人们时刻不忘学习上进，如果错过学习的最佳时机，努力追补，仍然是精神可嘉的表现。

A momentary explosion can leave an eternal memory. 瞬间的爆发可以留下永恒的记忆。

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.

大自然进化出了感知世界的惊人机制——我们才刚刚开始解码它们。

唯一真正的智慧在于知道自己一无所知。