Take responsibility for your life. Know that it is you who will get you where you want to go, no one else.
The only thing we have to fear is the absence of fear itself.
书籍是最安静、最恒久的朋友;它们是最易接近、最睿智的顾问。
数学只向那些纯粹出于对其美的热爱而接近它的人揭示其秘密。
The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.