The missing third: why credentials and data aren’t enough to persuade

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Via Talks at Google

“Mastering the ancient art of persuasion is no longer a soft skill – it is the fundamental skill that will get you from good to great in the age of ideas.”
— Carmine Gallo | Communication Secrets to Get From Good to Great | Talks at Google, watch at 3:28

You built the case carefully. The data was solid. Your credentials were solid. You walked away from that presentation, that email, that pitch – and nothing moved.

Aristotle had a name for what you were missing. He worked it out 2,000 years ago, and the formula hasn’t changed since. Persuasion requires three things working together: ethos (character and credibility), logos (logical appeal and evidence), and pathos (emotional connection). Most business communicators have the first two covered. The third one – the one that actually makes people act – gets left out.

Business culture trains the pathos out of us.

We learn to lead with data. We build credentials. We document our reasoning. None of this is wrong – ethos and logos matter. But Aristotle was clear: having two out of three does not deliver a two-thirds win. The lack of pathos means we achieve zero persuasion.

Carmine Gallo, a journalist by training, learned this the hard way. He spent years in business news getting good at facts, data, and evidence. It worked in journalism, but it wasn’t enough for persuasion. “I didn’t understand the connection of emotion,” he said. “You can’t connect with people on information alone.”

The gap doesn’t show up in our presentations as a missing slide. It shows up as a room that nods along but doesn’t change. A proposal that gets tabled. A recommendation that gets filed and forgotten.

The best vehicle for pathos is story.

Storytelling is how emotion travels from one person to another. Neuroscience now confirms what storytellers have always known: when we hear a story, something different happens in the brain. Neurochemicals fire. Oxytocin – a bonding molecule – is released. Two people synchronize. Researchers at Princeton call this neural coupling. It doesn’t happen when you present a spreadsheet.

The good news is that most professionals already have the raw material. They just underuse one type.

In a professional setting, there are three kinds of stories:

Case studies — easy, common, low-risk
Brand stories — also common
Personal stories — rare, and the most memorable

Personal stories are where emotional contagion actually happens. When you let people see who you are – your real failures, what you’ve learned, what you care about – they don’t just hear your argument. They feel it.

Avinash Kaushik, after a talk he gave at Google, received a compliment that stuck with him: “I could see you. I could see what you stand for.” Not the slides. Not the data. You. He says it’s the best compliment he’s ever gotten after a presentation.

Bryan Stevenson knows something about this.

Stevenson is a human rights attorney whose TED talk in 2012 received “one of the longest and loudest standing ovations” in the event’s then-28-year history. Attendees and TED itself pledged $1.12 million in response. His secret isn’t rhetorical technique. He tells personal stories in every presentation – about his grandmother, about growing up poor in the South, about people he’s met.

When asked why he keeps returning to the grandmother stories, he gave a simple answer: “Everybody has a grandmother. It’s an instant connection. It brings down barriers.”

Personal stories work because they find the universal inside the specific. The particular becomes a door that anyone can walk through.

Leaders who reach the highest levels seem to understand this intuitively. John Chambers speaks openly about dyslexia – a weakness he came to see as a strength. Richard Branson leads with his failures. When Gallo asked Branson why he kept talking about what went wrong, Branson said: “If your life is one long success story, it’s kind of boring.”

Everyone can get better at pathos.

The most common objection to pathos is that some people “just aren’t like that.” They’re analytical. They’re reserved. Emotional connection is for someone else’s presentation.

This is wrong, and history is full of counterexamples.

Abraham Lincoln built himself into a magnificent communicator through years of deliberate practice. He wasn’t born a storyteller – he worked at it his entire career. The Emancipation Proclamation, historians argue, might not have come when it did if he hadn’t. Steve Jobs worked at communication for many years before his iconic keynotes became what they became. John Hennessy, former president of Stanford and chairman of Alphabet’s board, put it plainly: “When you move from the field in which you built your career and step into leadership, your technical talent becomes less important. The ability to tell appropriate, compelling, and inspiring stories is essential.”

Ethos and logos get you in the room. They establish that you’re worth listening to. But they can’t get you across the finish line.

Pathos is what moves people from “I understand your point” to “I want to act on it.” It’s the difference between a presentation that’s remembered and one that’s forgotten by the time your audience gets back to their desk.

Hennessy says it best: If you’re a leader of an organization and you’re trying to take that organization to a new level, take them in a different direction, you need a story that can weave where you want to go and where you want to take them. This is going to be an important skill – together with your public speaking skills – it will really impact your ability to get things done in the world.

Things to Try

Finding your pathos layer:

Review your last three presentations or pitches. Note every place where you relied only on data or credentials. That’s where pathos is missing.
Write down one personal story that connects to your main point – a failure, a turning point, something you observed that changed how you think. It doesn’t have to be dramatic. It has to be real.
Test the story on one person before the real audience. Watch their face. Did they lean in? Did they ask a follow-up? That’s the signal.

Building the habit:

Keep a running note of personal stories you can draw from – the “grandmother stories” that touch something universal (a first failure, a mentor’s advice, a moment that shifted your view).
Before finalizing any presentation, ask one question: where does someone feel something here? If the answer is “nowhere,” add one story before you present.
Start small. You don’t need to overhaul everything. One personal story in one presentation is enough to see a difference.