I don't think that you have any insight whatsoever into your capacity for good until you have some well-developed insight into your capacity for evil.

改变行为的唯一方法是通过操纵强化偶然性。

自由是思想的果实。

I'm not a perfectionist, but I like to feel that things are done well.

你不必完美才能激励他人。

To exist is to have a subjective existence.

You have to believe in yourself when no one else does.