There’s one item of G.I.gear that can be the difference between life and death.
Never forget what you are, for surely the world will not. Make it your strength. Then it can never be your weakness. Armor yourself in it, and it will never be used to hurt you. 
最个人的东西就是最具创造性的。
In mathematics, as in life, the most profound discoveries often come from asking the simplest questions.
求学的最大益处,在于自我追求改变气质。
恐惧追随罪行,这是它的惩罚。