One never notices what has been done; one can only see what remains to be done.
人们永远不会注意到已经做了什么；人们只能看到还有待完成的事情。
一件艺术品之所以是艺术品，是因为它被称为艺术品。
You have to believe in your idea and be willing to persist through a lot of challenges.
释义：即使家庭贫困，也要保留读书的希望；即使生活富裕，也不能忘记劳动的艰辛。