数学的本质在于它的自由。
The right of nature... is the liberty each man hath, to use his own power, as he will himself, for the preservation of his own nature; that is to say, of his own life.
Think wrongly, if you please, but in all cases, think for yourself.
If you want to achieve greatness, stop asking for permission.
我们必须倾听并与当地社区互动,了解他们的需求和关切。