Man can only be free through mastery of himself.

The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.

我们不应当如梦游一般地行事和言语。

我所使用的材料不仅仅是物体，它们是意义的载体。

可持续性不再是选择，而是我们对后代的责任。

奥林匹克运动会是四年一度的人类的春天的庆祝活动。