DNA的双螺旋结构不仅美丽，而且优雅简单。

The most exciting moments in mathematics are when you discover that two seemingly unrelated areas are deeply connected.

对所有生物的爱是人类最高尚的品质。

We want to build technology that everybody loves using, and that affects everyone. We want to create beautiful, intuitive services and technologies that are so incredibly useful that people use them twice a day. Like they use a toothbrush. There aren’t that many things people use twice a day.

良心和怯懦其实是一回事。