âHe who treads softly goes far.â â Chinese proverb
Socrates of Athens is one of historyâs most celebrated thinkersânot because he delivered lectures or wrote treatises, but because he asked questions. His method was simple: find the points of agreement first, then ask questions that his opponent must logically answer âyesâ to, until the opponent found himself reaching a conclusion he would have rejected if stated directly at the outset.
Carnegieâs fourteenth principle is a modern application of Socratic method: when you want to persuade someone, do not begin with the points of disagreement. Begin by establishing common groundâthe things you both agree onâand build from there.
Carnegie draws on the psychological research of his time, noting that when a person says ânoâ they are in a fundamentally different physiological state than when they say âyes.â The word ânoâ triggers a whole-body defensive response: muscles tighten, posture closes, the mind begins marshaling arguments. Everything in the body is oriented toward resistance.
A âyesâ response is the opposite: it signals openness, affirmation, forward movement. Each âyesâ primes the person to say the next âyes.â By the time you reach your actual request, if you have built a chain of genuine agreement, the person is psychologically primed to continue agreeing.
This is not manipulation in the pejorative senseâyou are not tricking people into agreeing to things that donât serve their interests. You are helping them discover, through a sequence of questions, that they already agree with the conclusion.
The technique works as follows:
The key is that the questions must be genuineâthey must reflect positions the other person actually holds, not straw men or trick questions. This technique only works when the common ground is real.
Carnegie tells the story of a bank clerk named James Eberson who was asked by a customer to fill out a form the customer refused to complete. Rather than explaining the bankâs policy (which he had tried before, to no effect), Eberson tried a different approach.
He said: âMr. So-and-so, I understand you donât want to fill this out. But tell meâif you had money in a bank and died, wouldnât you want it to go to your family?â âYes.â âDonât you think it would be a good idea to provide all the information weâd need to make that happen?â âYes.â âOur form is simply the mechanism that makes what you want possible. Would you be willing to let us help you achieve it?â
The customer filled out the form. Nothing had changed except the approach: instead of imposing the bankâs requirements, Eberson had connected the requirement to what the customer already wanted.
Effective yes-building questions are:
Carnegie cites Daniel Webster, the legendary nineteenth-century orator, who never began a speech with his own position. He always began by establishing common ground with his audienceâby citing the things he and they believed together. Only after he had the audience nodding yes to their shared values and shared facts would he begin making his argument.
Webster understood that once a person is in the habit of saying yesâonce they are in an agreeable, forward-moving psychological stateâthey are far more likely to continue agreeing than to suddenly resist. An audience that has been nodding yes for ten minutes will listen to almost anything you say.
In any persuasion situation, taking time to find and explicitly acknowledge genuine common ground is not a delayâit is the foundation. The more controversial or difficult your actual request, the more important it is to establish solid common ground first.
Think of building a bridge: you cannot leap across a river in one bound, but if you build a series of stepping stones from one bank to the other, each step becomes easy. The yes-building technique is about laying stepping stones.
Before your next important persuasion conversation:
Think of a situation where you want to persuade someone but keep running into resistance. Can you identify three to five things you and that person genuinely agree on? What would happen if you spent the first ten minutes of your next conversation establishing only those points of agreement, before mentioning anything you disagree about?