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

The true power of mathematics is not in its complexity, but in its simplicity and elegance.

未來屬于那些相信自己夢想之美的人。

The only limits are the ones you set for yourself.

The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt, and the profoundest wisdom to know when it ought to be resisted, and when it be obeyed.

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

記憶是奇怪的動物：在你最不經意時咬你一口。