Warren Buffett’s Timeless One-Page Memo: The Simple Rule That Guided Berkshire Hathaway for 25 Years

George Ellis
3 Min Read

For more than a quarter-century, Warren Buffett, the legendary investor and CEO of Berkshire Hathaway, has followed a simple but powerful practice: sending his managers a one-page memo every two years. The memo, which has become a hallmark of Buffett’s leadership style, is focused not on micromanaging performance or financial targets, but on reinforcing Berkshire’s culture of integrity and trust.

Buffett’s memo has one clear theme: protect the company’s reputation at all costs. In his own words, he reminds his managers that while performance is crucial, reputation is priceless—and once lost, it’s nearly impossible to regain.

What Buffett’s Memo Said

The core of Buffett’s message is refreshingly simple:

“We can afford to lose money—even a lot of money. But we can’t afford to lose an ounce of reputation.”

This straightforward guidance places ethics and judgment above all else, giving his managers autonomy while holding them accountable to Berkshire’s highest standard: doing what’s right, even when no one is watching.

Why It Works

Rather than inundating executives with directives, Buffett uses the memo to anchor them to a single, unchanging principle. This fosters a decentralized system where Berkshire’s more than 60 subsidiaries operate independently but share a unified approach to decision-making.

His philosophy has created a culture in which trust is paramount. Managers know they won’t be second-guessed on every operational detail but will be held responsible for any actions that could tarnish Berkshire’s reputation.

Leadership Through Simplicity

The memo’s longevity speaks volumes about its impact. While many companies constantly revamp their mission statements or leadership strategies, Buffett’s approach hasn’t changed in decades. It reflects his belief that enduring success comes from consistent values rather than complex rules.

By condensing his leadership principles into a single page, Buffett proves that great management isn’t about micromanaging—it’s about setting clear expectations and empowering leaders to act with integrity.

A Lesson for Business Leaders

In an era of corporate scandals and short-termism, Buffett’s memo serves as a reminder that reputation remains a company’s most valuable asset. His decades-long practice shows that effective leadership doesn’t require lengthy manuals—just a few well-chosen words delivered consistently over time.

For managers, executives, and entrepreneurs, Buffett’s memo is a masterclass in how to build trust, autonomy, and enduring success in any organization.

Share This Article