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

為全人類提供食物的戰斗已經結束。為未來全人類提供食物的戰斗才剛剛開始。

The two most important days in your life are the day you are born and the day you find out why.

自然實驗是理解現實世界中因果關系的強大工具。

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

The will to learn is an intrinsic motive, one that finds both its source and its reward in its own exercise.

當我們意識到怪物就在我們內心時，就不再在床下尋找它們了。

The spread of liberal democracy around the world is not inevitable, but it is the most likely outcome of the historical process.