Treat your opinions as hypotheses, not possessions.
Grant's scientist mindset makes belief less brittle. A good idea should be clear enough to test and light enough to revise.
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Think Again: The Power of Knowing What You Don't Know
5 memorable lines from Think Again: The Power of Knowing What You Don't Know by Adam M. Grant, each with the idea behind it.
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Lines labelled “HourLife takeaway” are our wording of the book’s ideas and may paraphrase it. Only lines in quotation marks are the author’s own words, with where they appear. Check the book for exact wording before you quote it. Spot an error?
Certainty can be a costume for identity protection.
Preacher, prosecutor, and politician modes often feel logical, but they are usually defending status, belonging, or self-image.
Confident humility beats loud conviction.
The strongest thinkers combine faith in their ability to learn with doubt about whether their current answer is complete.
Good disagreement is a thinking tool.
The goal is not harmony at all costs. It is friction with enough trust to sharpen the idea without humiliating the person.
Changing your mind should feel like progress, not defeat.
When identity is tied to values and methods instead of fixed opinions, updating becomes evidence that the system is working.
Keep this going in the app.
HourLife turns these ideas into a daily system — goals, habits, focus, and reflection in one private place.
