法律体系是根据其自身的有效性标准而有效的规则体系。

When I'm angry, I play basketball to vent my anger on the ball.

局外人

Innovation is not just about creating something new; it's about solving problems in ways that matter.

I hope that in this year to come, you make mistakes. Because if you are making mistakes, then you are making new things, trying new things, learning, living, pushing yourself, changing yourself, changing your world. You're doing things you've never done before, and more importantly, you're doing something.

原子能的释放并没有创造新的问题。它仅仅是把解决一个现有问题的工作变得更为急迫。