我们从这样的假设开始：任何学科都可以以某种智力上诚实的形式有效地教给处于任何发展阶段的任何孩子。

古代著书立说的人，都有卓越的见解而自成一家，后世无法轻易改变。

Teaching is not about imparting everything, but about guiding at the right moment.

Data-driven decision making.

Every life leaves behind a trail of evidence; the biographer is the detective who follows it.

The most important thing is to actually care about what you’re doing.

我的作品纯粹是自传性的...它关于我自己和我的周围环境。