大海不拒绝各种各样的水，所以才能成就它的博大；大山不拒绝形形色色的土石，所以才能成就它的高峻；贤明的君主不嫌弃百姓，所以能够聚集众多的臣民；读书人不厌倦学习，所以能达到圣贤的境界。

The study of the mind must be based on direct observation.

We must listen to science, but also to communities—real solutions are found at the intersection of data and human need.

如果农民不能有效使用，最先进的技术也毫无价值。