True innovation is not disruption, but solving real problems.

证明的目的是理解，而不仅仅是验证。

读经书，阅传注，就为治学打下坚实基础；看史籍，鉴古今，就使宏论滔滔切中肯綮；游山川，观壮景，就使志气凌云眼界开阔；戒嗜好，弃私欲，就使胸怀磊落一尘不染。

The only real voyage of discovery consists not in seeking new landscapes, but in having new eyes.

The challenge is not just to give people money but to understand how they make decisions under constraints.

The study of algorithms is the study of methods for solving problems on a computer.