The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.

预测未来的最好方法就是发明它。

And let's be clear: It's not enough just to limit ads for foods that aren't healthy. It's also going to be critical to increase marketing for foods that are healthy.

民主是最差的一种政治制度，除了所有那些其他被实验过的政治制度之外。

You have to be willing to fail in order to succeed.

当今世界面临的最重要挑战是在发展中国家建立强大、有效且负责任的国家。