正如演化给予我们性欲而不是理性争论来确保繁衍，我们也演化出同情、爱情、憎恶和愤怒来反应彼此之间的行为。
Just as evolution gave us sexual desire, rather than rational arguments, to ensure procreation, so we have evolved feelings of empathy, affection, disgust, and rage to respond to one another’s behavior.