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

Innovation requires both creativity and rigor.

There is more than one kind of freedom... Freedom to and freedom from. In the days of anarchy, it was freedom to. Now you are being given freedom from. Don't underrate it.

He who refuses to do arithmetic is doomed to talk nonsense.

Like father,like son.

Collaboration and sharing of knowledge are essential for the advancement of science.

希望とは、暗闇の中の小さな光だ。

"The essential support and encouragement comes from within, arising out of the mad notion that your society needs to know what only you can tell it."

人體是與政治和社會問題互動的最直接方式。