A man who dares to waste one hour of time has not discovered the value of life.
I think that the most interesting art is the art that makes you think about what you're looking at.
宰予白天睡觉。孔子说:“他象朽木一样无法雕琢,象粪墙一样无法粉刷,我能拿他怎样?”孔子又说:“以前我看人,他说什么,我信什么;现在我看人,听他说,再看他做。因为宰予,我改了过来。”
数学的真正乐趣在于发现的过程,而不仅仅是结果。