I was neat, clean, shaved and sober, and I didn't care who knew it.
世界是一本书,不旅行的人只读了一页。
I've learned that you shouldn't go through life with a catcher's mitt on both hands; you need to be able to throw something back.
生活是一场冒险,每一个挑战都是成长的机会。
对智能的研究必须基于对符号系统的研究。