The only limits in life are the ones you make.
生活中唯一的限制是你自己设定的。
如果你不改变，你就会灭绝。
"The very least you can do in your life is to figure out what you hope for. And the most you can do is live inside that hope. Not admire it from a distance but live right in it, under its roof."
Believe in yourself and all that you are. Know that there is something inside you that is greater than any obstacle.
在需要技巧的地方，武力没有用武之地。
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。