"There is one longing almost as deep as hunger," Dale Carnegie told his readers. "The desire to be important."

That line stopped me the first time I read it. I said it out loud in my kitchen. I have watched it prove true ever since.

Here is the whole book in one idea. People are starving to feel important. If you feed that hunger with honest appreciation, doors open. If you criticize, doors slam. That is it. Every trick in Carnegie's system grows out of that one root.

He opened with a killer. "Two Gun" Crowley, cornered by police in 1931, wrote a note while bullets flew. "Under my coat is a weary heart, but a kind one, one that would do nobody any harm."

A cop killer. And even he could not admit he was wrong. Carnegie's point landed hard on me. If a man like that will not accept blame, why did I think my coworker would?

So Carnegie's first rule is blunt. Never criticize, condemn, or complain. Criticism does not fix people. It just makes them defend themselves and resent you.

The flip side is appreciation, and Carnegie's proof was Charles Schwab. Andrew Carnegie paid Schwab a million dollars a year to run his steel company. Why? Schwab explained it himself.

"I consider my ability to arouse enthusiasm among my people the greatest asset I possess," he said. "I am hearty in my approbation and lavish in my praise."

Not flattery. Schwab was clear about that. Flattery is fake and people smell it. Appreciation is honest and specific. One is counterfeit money. The other is gold.

The next move is just as simple. Become interested in other people. Ask about them. Let them talk. Carnegie told story after story of people who said almost nothing at a dinner party, only asked questions, and were later called brilliant talkers.

Then there is the name. "A person's name is, to that person, the sweetest and most important sound in any language," Carnegie wrote. He pointed to Jim Farley, the political operator who helped put Franklin Roosevelt in the White House. Farley could call about 50,000 people by their first names. People he met once, years before, got greeted like old friends. They never forgot it.

Put the whole system side by side and you can see why one path fails and one works.

I tested this myself. I stopped correcting a friend at work and started asking about her weekend hikes instead. Two weeks later she told someone I was the easiest person in the office to talk to. I had barely talked at all.

So here is the book, boiled down to three moves you can run this week.

Try this: today, give one person a specific and honest compliment. Not "nice job." Name the exact thing they did well. "The way you handled that angry customer was calm and smart." Watch their face. Carnegie promised the effect would outlast the moment, and in my experience he was right.

That is the engine. Make people feel important, honestly, and they will walk through fire for you.

But I kept turning one question over after I closed the book.

If a name and a compliment can open any door, what happens when the person across the table wants something you cannot give? Find out in Book 2.