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 thing in a computer network is the protocol.

The greatest wisdom is to know that you know nothing.

人們常常通過傾訴來緩解悲傷。

I suppose when they reach a certain age some men are afraid to grow up. It seems the older the men get, the younger their new wives get.

The most effective way to destroy people is to deny and obliterate their own understanding of their history.

好比有一百扇門而只關(guān)上一扇，那么盜賊怎么就會(huì)沒有地方進(jìn)去呢?

追求數(shù)學(xué)真理就是追求美、優(yōu)雅和簡潔。