Innovation is not about saying yes to everything. It's about saying no to all but the most crucial features.

宇宙不过是大爆炸之光锥的内部。

"Don't write down to children. They're much smarter than we think."

The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.

It is far harder to kill a phantom than a reality.

整体不同于部分之和。