色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

Happiness resides not in possessions and not in gold； the feeling of happiness dwells in the soul.

The desert teaches you the value of water, and exile teaches you the value of home.

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

跨行業合作是解決當今復雜挑戰的關鍵。

預測未來的最好方法就是創造未來。

Man is condemned to be free.

I'm not a person who gives up on myself.