Abraham’s willingness to plunge a dagger through the heart of his young son because God, without any explanation, ordered it. We learn in this story … - Robert B. Cialdini

the correctness of an action was not adjudged by such considerations as apparent senselessness, harmfulness, injustice, or usual moral standards, but by the mere command of a higher authority.

good-looking people are aware that other people’s positive evaluations of them are not based on their actual traits and abilities but are often caused by an attractiveness “halo

They behave in accordance with what the contrast principle would suggest: Sell the suit first, because when it comes time to look at sweaters, even expensive ones, their prices will not seem as high in comparison.

So by my lights, the number one rule for salespeople is to show customers that you genuinely like them. There’s a wise adage that fits this logic well: people don’t care how much you know until they know how much you care.