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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. 
The major credit I think Jim and I deserve... is for selecting the right problem and sticking to it.
成功不是终点,失败也并非致命,重要的是继续前进的勇气。
做伟大工作的唯一途径就是热爱你所做的事。