A philosophical problem has the form: "I don't know my way about."

My idea of heaven is a great big baked potato and someone to share it with.

The concept of computational efficiency is central to the design of learning algorithms.

很容易忘记世界上有多少人，多到要爆炸，每个人都可想象却又总是被误解。

解释：人不博览群书，不了解古今，不能识别世间事物，不知道是与非，就像盲人看不到颜色 、聋人听不到声音、鼻塞的人闻不到花香一样啊。

被锁链束缚往往比自由更安全。

荒野是一个极端的地方。要生存，你必须接受高潮和低谷。