居逆境中，周身皆针砭药石，砥节砺行而不觉；处顺境内，眼前尽兵刃戈矛，销膏靡骨而不知。
处于逆境中，就好比周身都扎着针、敷着药；冥冥中却能磨炼人的意志、培养高尚的品行。处于顺境中，就好比被各种各样的兵器包围；冥冥中掏空了身体，消磨了向上进取的意志。
始终保持你的刀锋利，你的智慧更锋利，你的精神最锋利。
育儿不是追求完美，而是建立联系。
The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.
The dinosaurs became extinct because they didn't have a space program. And if we become extinct because we don't have a space program, it'll serve us right!
No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.