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 pursuit of mathematical truth is a never-ending adventure.

"The number one benefit of information technology is that it empowers people to do what they want to do. It lets people be creative. It lets people be productive. It lets people learn things they didn't think they could learn before, and so in a sense it is all about potential."

Every loaf of bread tells a story; make yours worth telling.

文學(xué)是燃燒在靈魂中的火焰，照亮我們存在的最黑暗角落。