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The main task in life is simply this: to identify and separate matters so that I can say clearly to myself which are externals not under my control, and which have to do with the choices I actually control.

任何有所作為的人都一定會受到批評、誹謗和誤解。這是偉大的代價的一部分，每個偉人都明白這一點。

The strength of a company lies in its people—their skills, their passion, and their commitment.

證明是一種用于使他人相信數學陳述為真的工具。