幸福需要快乐和目标两者兼具——仅靠其中一项是不够的。
我看到了,我忘记了;我听到了,我记住了;我做过了,我理解了。
【译文】小事守信可建大信誉,明君积累诚信治国。
最好的音乐来自最黑暗的地方。
A good mathematician is someone who can see analogies between theorems. A great mathematician is someone who can see analogies between analogies.