鸟之将死，其鸣也哀；人之将死，其言也善。
鸟快要死的时候，叫声是悲切的，人快要死的时候，说话是善良的。
科学的进步依赖于挑战未知的勇气和从失败中学习的智慧。
Greatness is not achieved alone; it is built through teamwork.
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.