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。
We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.
平等对待用户
“唯一真正无边无际的是人类精神。”