逻辑学研究不仅仅是关于推理规则，而是关于理性思维的结构。

Make no mistake about it: Computers process numbers - not symbols. We measure our understanding (and control) by the extent to which we can arithmetize an activity.

获胜的关键在于始终如一和不断进步。

作战虽然讲究排兵布阵，但士兵的勇敢是其中的根本;丧葬虽然讲究礼节，但对亲人的哀思是其中的根本;一个人虽然很有学识，但思想道德、行为举止是其中的根本。

我经常思考劳动和时间。

"There is no greater agony than bearing an untold story inside you."

The man who does not work for the love of work but only for money is not likely to make money nor to find much fun in life.

可持续发展不是一种选择；它是我们对后代的责任。