Efficiency is doing things right; effectiveness is doing the right things.

In mathematics, the simplest questions often lead to the most profound discoveries.

Sustainable forestry isn't a cost—it's an investment in our future.

The design of algorithms is both an art and a science.

在生命中，最微不足道但有意义的事物，也比最伟大但无意义的事物更有价值。

战争不会消灭正直，它反而更需要正直——比和平时期更需要。