精品无码久久久久久国产_成人午夜在线视频一区_亚洲最大的av网站_亚洲欧美综合区自拍另类_91精品国产一区_日韩精品中文在线观看_一道本无吗dⅴd在线播放一区_国产精品旅馆在线_欧美午夜久久久_亚洲自拍在线观看_黑人精品xxx一区一二区_亚洲精品日韩久久久_在线视频一区二区_国产欧美久久一区二区_中文字幕精品在线视频_成人欧美在线观看

In mathematics, as in life, the most elegant solutions often arise from a deep understanding of the problem.

生命本身就是最美的童話。

The writer must be a person who is willing to take risks.

You don't have to like it, but you have to accept that it's art.

世界很艱難，但你更強(qiáng)大。

每一槍都很重要，每一刻都很關(guān)鍵。

"Hate is a lack of imagination."