The mathematician's patterns, like the painter's or the poet's, must be beautiful; the ideas, like the colors or the words, must fit together in a harmonious way.

学校必须代表当下的生活——对孩子来说，这种生活与他在家庭、邻里或操场上所进行的生活一样真实和重要。

就这样吧。

The historian is a prophet looking backwards.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.