教育的艺术必须从教育的科学中衍生出其规则。

Much of what sophisticates loftily refer to as the "complexity of the real world” is in fact the inconsistency in their own minds.

我们祖先面临的主要生存威胁 - 捕食者、饥饿、疾病 - 在我们的恐惧和焦虑中留下了印记。

农业技术不是趋势，而是未来。