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 difference between a policy and a crusade is that a policy is judged by its results, while a crusade is judged by how good it makes its crusaders feel.

你不必喜歡它，但你必須接受它是藝術(shù)。

The world is full of stories, and from time to time they permit themselves to be told.

There is only one good, which is knowledge, and one evil, which is ignorance.

伽羅瓦表示的研究證明了代數(shù)幾何之美。