The other day, I attended a lecture by a world-renowned professor on an advanced topic in statistics. There were all kinds of graphs and equations, and the thesis he was advancing was only accessible to people who already knew a lot about how to work with data.

But that wasn’t what impressed me the most. Instead, it was something this professor said a half-dozen times in the course of an hour.

I don’t know.

Of course, there was a lot he did know, and he had a ready reply in response to most questions. But when he didn’t know the answer, he said so.

In other words, what impressed me most was not his intellectual prowess but his intellectual humility— a strength of character I admit I need to practice.

It turns out that intellectually humble people are more curious, open to new experiences, and tolerant of ambiguity. They’re less dogmatic and less prone to judge others based on their religious opinions. They seek out views that differ from their own.

A lot of what schools call “critical thinking” comes down to intellectual humility: knowing what you don’t know. And like any other character strength, intellectual humility develops with practice and encouragement.

Have you ever given a presentation and hoped and prayed that nobody would ask you a question for which you weren’t prepared? I once felt that way; I didn’t want to look stupid. But over time, fear of what I don’t know has been replaced with excitement about what I have yet to learn.

Indeed, each time the professor I so admire said “I don’t know,” he went to the board and made a note to himself to work on the question after the lecture. I may have imagined it, but he seemed more excited about the questions he couldn’t answer than the ones he could.

Don’t be afraid to admit what you don’t know. It’s a sign of strength, not weakness.

Do engage with people with genuine intellectual humility. When you’re asked a question you haven’t considered before, consider it a gift. And, perhaps, like the professor I was admiring the other day, follow “I don’t know” with “Thank you. Great question. I’ll need to work on that.”

With grit and gratitude,

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Originally published at Character Lab.


  • Angela Duckworth

    CEO and Co-Founder of Character Lab, UPenn Professor of Psychology

    Character Lab

    Angela Duckworth is co-founder and CEO of Character Lab, a nonprofit whose mission is to advance scientific insights that help kids thrive. She is also a professor of psychology at the University of Pennsylvania, where she co-directs the Penn-Wharton Behavior Change For Good Initiative and Wharton People Analytics. Prior to her career in research, she was a math and science teacher in the public schools of New York City, San Francisco, and Philadelphia. Angela’s TED Talk is among the most-viewed of all time and her book, Grit: The Power of Passion and Perseverance, was a #1 New York Times best seller. You can sign up to receive her Tip of the Week here.