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 don't inherit forests from our ancestors, we borrow them from our children.

活著就是被影子追隨。

Education does not plant the faculties in us like seeds in a garden; it merely directs them in the way they should go.

疼痛研究不僅僅是緩解痛苦；它關乎理解人類生物學的一個基本方面。

永遠不要在質量上妥協。它是我們所做一切的基礎。