Tajfel The psychologist Tajfel after World War II was interested in the question of what could make a group.

二战后一位心理学家,很有兴趣研究群体是如何形成的。

耶鲁公开课 - 心理学导论课程节选

I don't know about that. I am not so sure." But then, we realized that like when we walk out that door, it's the whole world again. So you get sucked up by your group, by your sort of identity.

我不知道，不是很确定，然后呢，我们就意识到走出那个大门，又是一个完整的世界，所以你就会,被你的团体，你的身份所束缚。

普林斯顿公开课 - 人性课程节选

We're going to play across the world with this group.

我们甚至可以在全世界开演奏会

耶鲁公开课 - 聆听音乐课程节选

This fellow who was just interviewed on this is a man named Philip James who's in London and runs a group called The International Obesity Task Force, and probably more than anyone in the world, knows the world situation about food and food policy.

视频中的这位先生,来自伦敦,名叫菲利普·詹姆斯,他负责主持国际肥胖特别工作组,也许他比我们任何人都了解,现在世界粮食和粮食政策的形式

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Margaret Mead, the anthropologist: "Never doubt that a small group of thoughtful, committed citizens can change the world.

人类学家Margaret，Mead说：,“永远不要怀疑一小群，有思想，坚定的市民可以改变世界。

哈佛公开课 - 幸福课课程节选