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The true test of a mathematical idea is its ability to inspire further questions.
"Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers."
I'm not a girl who needs validation. I'm a girl who validates herself.
自我不是现成的东西,而是通过行动选择不断形成的东西。
人类最后的自由是在任何特定环境下选择自己态度的能力。