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

We shouldn't teach great books; we should teach a love of reading.

The world is what it is; men who are nothing, who allow themselves to become nothing, have no place in it.

I don’t let fear control me, I let it challenge me.

糾纏不僅僅是量子力學的一個奇特特征 - 它是本質特征。

Language shapes the way we think, and determines what we can think about.

Science is a journey, and every step matters.

一個組織的道德質量決定了其聲譽的質量。