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 most important property of a program is whether it accomplishes the intention of its user.

I neither affirm nor deny， but I suspend my judgment.

每一次挑戰都是偽裝的機遇。

讓這成為一個準則：永遠不要給孩子一本你自己不愿意讀的書。

The stream of thought is a stream of survival.

文學是通過文字表達靈魂的藝術。

Only by mastering core technologies can we control our own destiny.

數學的本質在于它的自由。