民主与其说是一种政府形式，不如说是一套原则。
The sweetest fruits often come from the hardest seasons.
"The only way to learn mathematics is to do mathematics."
你脑袋里有大脑，鞋子里有双脚，你可以选择任何方向前进。
Art doesn’t have to mean anything—it just has to mean something to you.
The way a child holds a book tells you everything about how they feel about it.