Sour Grapes Cost More Than the Grapes
Law 36 of the 48 Laws of Power tells you to disdain what you cannot have and to ignore your enemies, because ignoring them is the best revenge. Half of that is true. Attention makes things bigger, and you cannot hang your good on things outside your reach. Then Greene tells you to do it the way Aesop's fox did, by deciding the grapes were sour. The fox lied to himself, and the lie is the expensive part. The Stoics had a cheaper way to lose.