每个人体内都携带着古老世界的碎片。

关于课程的斗争最终是关于我们希望拥有何种社会的斗争。

Children have real understanding only of that which they invent themselves, and each time that we try to teach them something too quickly, we keep them from reinventing it themselves.

"The most radical thing you can do is to stay home and love your family."

科学不是形式逻辑；它和其他创造性艺术一样，需要思想的自由发挥。