法律效力的概念对于理解法律的本质至关重要。

I have to be alone very often. I'd be quite happy if I spent from Saturday night until Monday morning alone in my apartment. That's how I refuel.

市场永远是对的。

Quality is never an accident; it's always the result of intelligent effort.

艺术是灵魂的语言。

世界是一个充满阴影的地方，而我们则是穿行其中的幽灵。

科学不仅仅是回答问题，更是发现新的问题。