我是行尸走肉，但我只是一个说话的脑袋，一个漂浮的僵尸，但我永远不会死。

The function of thought is to guide action.

The Internet is a powerful tool for education, but it is not a substitute for the teacher.

Writing is the only thing that, when I do it, I don't feel I should be doing something else.

人心的差异，就像人的面孔一样各不相同。