Our capacity to draw happiness from aesthetic objects or material goods in fact seems critically dependent on our first satisfying a more important range of emotional or psychological needs, among them the need for understanding, for love, expression and respect.

When you are young, you think that the world is a place where you can live as you choose. But as you get older, you realize that the world is a place where you have to live as you must.

The search for happiness is one of the chief sources of unhappiness.

Perhaps as important is the relation between the existence of solutions to a competitive equilibrium and the problems of normative or welfare economics.

爱是一种力量，它能让我们在最黑暗的时刻找到光明。

Digital exclusion is one of the greatest inequalities of our time.

我画人不是因为他们是什么样的人，也不完全不管他们是什么样的人，而是碰巧他们就是那样。