The only way to get rid of a temptation is to yield to it.

The main task in life is simply this: to identify and separate from the things that are not ourselves, so that we can become ourselves.

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。

抽象的力量使我们能够看到贯穿看似不同问题的共同线索。