That is what learning is. You suddenly understand something you've understood all your life, but in a new way.
I would not dare to say that there is a direct relation between mathematics and madness, but there is no doubt that great mathematicians suffer from maniacal characteristics.
人は、誰かに必要とされることで生きる意味を見つける。
市场失灵的程度永远不会为零,但政府失灵的程度同样如此。
可持续性不仅仅是一个流行词;它是我们对后代的责任。