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You have to be true to yourself. Strong enough to be true to yourself. Brave enough to be strong enough to be true to yourself. Healthy enough to be brave enough to be strong enough to shape yourself from what you actually are.

I'm a great believer in luck, and I find the harder I work the more I have of it.

心理活動的目的是成功的生活。

做數(shù)學就是與宇宙對話，尋找我們甚至可能還不知道如何提出的問題的答案。