I'm never going to change so much that people can't recognize me.

Free education is abundant, all over the Internet. It's the desire to learn that's scarce.

The important thing in science is not so much to obtain new facts as to discover new ways of thinking about them.

没有乌托邦的世界地图是不值一瞥的。

写作就是重写。

我们肩上背负的责任重在，必须小心谨慎地了解可能可能会泯灭孩子精神的原因，并要融入孩子的世界。

最好的艺术既是个人的，也是普遍的。