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证明是一种用于使他人相信数学陈述为真的工具。
A proof is a device for convincing someone else that a mathematical statement is true.
【译文】知道的就是知道的,不知道的就是不知道的,这就关于知道的真谛。”
爱就是冒着受伤的风险,而不爱则是保证了一生的虚度。
When stocks are attractive, you buy them. Sure, they can go lower. I've bought stocks at $12 that went to $2, but then they later went to $30. You just don't know when you can catch the bottom.
You know, I'm not always going to be around to help you...
"Los Angeles is the city of the future—always."