The attosecond timescale is to electron motion what the high-speed camera was to studying animal locomotion.

I'm the reason your moon won't glow.

A building should appear to grow easily from its site.

劳动的自然价格是使劳动者能够生存并延续其后代所必需的价格，既不增加也不减少。

我不是圣人，我是罪人。

The only way to do great work is to love what you do.

一本好书是一扇通往更广阔世界的魔法之门，那里充满奇迹、美丽和真理。