And the reinvention in the nineteenth century of British identity will also have a lot to do with fear of the Irish, "The enemy within," As they were perceived.

十九世纪英国民认同感的重建,和对爱尔兰的惧怕也有很大关系,"家贼难防",他们是这样看待爱尔兰的

耶鲁公开课 - 欧洲文明课程节选

Here are humans who had to walk long distances potentially to find the food, kill the food at great risk to themselves; inspiring a cascade of physiological effects that have to do with fear and arousal and things like that, not to mention all the calories one would burn doing this kind of activity.

这些人可能需要走很远的路,去寻找食物,冒着巨大危险,杀死猎物,人们耗费能量以激活一系列生理效应,用以战胜恐惧,引发斗志,更不用说人们在狩猎的过程中,消耗的卡路里量了

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选