When children do not have the ability to control the development of the time, "let the children want to do anything" is contrary to the concept of freedom.
当儿童还没有发展起控制能力的时候，“让儿童想干什么就干什么”是与自由观念相违背的。
There's a violence in the act of making.
学习数学的唯一方法就是做数学。
宇宙不仅比我们想象的更奇怪，而且比我们能够想象的还要奇怪。