失败是有教益的。真正思考的人从失败中学到的东西和从成功中学到的一样多。
Failure is instructive. The person who really thinks learns quite as much from his failures as from his successes.
【讲解】：古代读书人学习的目的，在于修养自己的学问道德（然后去为国家、人民服务），现在读书人学习的目的，在于给别人看（希望得到别人的赞美和任用）。
每个人都有权拥有自己的观点，但没有人有权在事实上犯错。
疼痛不仅仅是一种感觉；它是一种复杂的生物反应，告诉我们某些地方出了问题。
The most powerful art is often the most humble.
"Innovation is born from the marriage of curiosity and persistence."