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 world is a very puzzling place, and it is a great privilege to be able to think about it."

心靈的純潔是愿意一件事。

對我來說，夢就是自然的一部分，它無意于欺騙，而是在盡力表達什么。

A proof that P = NP would have profound implications for mathematics, cryptography, and algorithm design.

與其選擇強壯的身體，不如選擇堅韌的靈魂。

安逸是智慧的危害；膽怯是勇敢的仇敵。