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

"A well-written biography is a resurrection of the past."

The PAC learning framework provides a formal way to quantify the learnability of a concept class.

The melancholy science from which I make this offering to my friend relates to a region that from time immemorial was regarded as the true field of philosophy, but which, since the latter's conversion into method, has lapsed into intellectual neglect, sententious whimsy, and finally oblivion.

I am not a perfect person, but I am trying every day to concentrate on being better.

He was born with his foot in his mouth

沉默是上帝的語言，其他一切都是拙劣的翻譯。