出自先秦《荀子·儒效》。对于所知道的东西就说知道，不知道的就说不知道；这样，对内是不欺骗自己的良心，对外是不欺骗他人。说明为人应当诚实的道理。

"Drawing is like a diary to me, a way of expressing my thoughts and feelings visually."

The most remarkable development of the last quarter of the twentieth century has been the revelation of enormous weaknesses at the core of the world's seemingly strong dictatorships.

森林不仅仅是碳汇，它们是生命之源。

建筑师必须是一个先知...真正意义上的先知...如果他不能预见至少十年以后的事情，就不要称他为建筑师。