translation.en: Now sometimes, we break the world up into us versus them, into in-group versus out-group, and sometimes when we do this, we know we're doing something wrong, and we're kind of ashamed of it.
translation.zh: 有时候，我们将世界划分为 我们对抗他们， 内群体对抗外群体， 有时当我们这么做的时候， 我们知道我们正在犯错误， 我们甚至会有些惭愧。