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Barchart
Caleb Naysmith

Warren Buffett Warns ‘Thumbsucking’ is ‘the Cardinal Sin’ in Business Because It’s ‘Delaying the Correction of Mistakes’

Warren Buffett, the renowned chairman and CEO of Berkshire Hathaway (BRK.B) (BRK.A), has long been celebrated for his disciplined, value-driven investment strategy and his pragmatic approach to business leadership. Every year, the “Oracle of Omaha” pens an extensive letter to shareholders, detailing the state of the company, which is packed with vital knowledge for both aspiring and seasoned investors. 

In his most recent 2024 shareholders' letter, Buffett offered a candid reflection on personnel decisions. “A decent batting average in personnel decisions is all that can be hoped for. The cardinal sin is delaying the correction of mistakes or what Charlie Munger called ‘thumb-sucking,’” Buffett said. He continued, “Problems, he would tell me, cannot be wished away. They require action, however uncomfortable that may be.”

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