已经拥有许多而想拥有更多的人，其失意感耍大于一无所有而只想拥有一点点的人。另外，只缺一样东西的人也会比缺很多东西的人更不满。
Our frustration is greater when we have much and want more than when we have nothing and want some. We are less dissatisfied when we lack many things than when we seem to lack but one thing.
There is no must in art because art is free.
I can't go on, I'll go on.
世界是一本书，不旅行的人只读了一页。
世界上最伟大的事情是知道如何属于自己。