You have a list of 25 professional goals. You work hard. You're making progress on several fronts at once. And yet you feel like you're never really making any progress. Millions of entrepreneurs and professionals know this feeling. What few of them know is that the solution lies in a method attributed to one of the most accomplished investors in history: Warren Buffett.
Warren Buffett's 25/5 rule is both simple and radical. It doesn't require you to work harder. It requires you to work differently, eliminating almost everything to keep only the essential. This principle is based on a profound conviction: dispersion is the enemy of success.
The story behind Warren Buffett's 25/5 rule
The story circulating in business circles is that Warren Buffett once advised his personal pilot, Mike Flint, on how to manage his career. Flint had worked for him for ten years and wanted to progress. Buffett asked him to write down his 25 life and career goals. Flint did so.
Buffett then asks him to pick the top 5. Flint circles them. «What about the other 20?» asks Buffett. Flint replied that he would deal with them when he had finished the first 5. Warren Buffett immediately takes him back: these remaining 20 goals are not a secondary list. They are precisely the ones you must avoid at all costs. They're important enough to get your attention, but not important enough to deserve your energy. They will take you away from your real priorities.
This anecdote, although not documented in an official biography of Warren Buffett, has become a benchmark in the field of productivity and leadership. It crystallises a philosophy that Buffett effectively embodied throughout his career, confirmed by his annual letters to Berkshire Hathaway shareholders and by the testimonies of those close to him, notably Charlie Munger, his long-time partner.
Focus as a performance strategy
What Warren Buffett describes in this method is not a simple time management technique. It's a philosophy of focus, underpinned by decades of research into cognitive science and organisational psychology.
In his work on ego depletion published in the Journal of Personality and Social Psychology, researcher Roy Baumeister has shown that willpower and the ability to concentrate are limited resources. Each decision, each additional task, each objective you pursue simultaneously consumes a share of this cognitive energy. When you try to do everything, you end up doing nothing really well.
You probably know this from experience. A day with ten priorities is often a day with no real priorities. Warren Buffett's 25/5 rule forces you to choose, and that choice is painful because it means giving up.
Why the remaining 20 targets are dangerous
This is the most counter-intuitive part of the method. You might think that pursuing 10 or 15 goals at a time is a sign of ambition. It's actually an illusion of productivity.
The 20 goals you set aside are seductive enough to capture your attention, fuel your curiosity, or trigger regret. They create what neuroscientists call the «residual cognitive load»: even when you're working on your 5 priorities, part of your brain is thinking about the other 20. This reduces your performance, creativity and ability to make good decisions.
Warren Buffett has always refused to diversify his investments excessively. His philosophy, summed up in several of his annual letters, is one of concentration: it's better to own a few assets that you understand perfectly than to spread yourself over dozens of positions that you have only half a grasp of. The same reasoning applies to your professional and personal objectives.
How to apply the 25/5 rule in your life
Applying this method requires rigour and an intellectual honesty that many avoid. Here's how you can put it into practice, whether you're an entrepreneur, freelancer, manager or employee looking for clarity.
First step: write down your 25 goals without censoring yourself. Everything you want to achieve in the next 12 months, in your career, in your personal life, in your development. Don't filter anything at this stage.
Second stage: Choose your top 5 priorities. The ones that, if you achieve them, will really transform your trajectory. Not the ones that seem reasonable or socially valued. The ones that deeply belong to you.
Third step: treat the remaining 20 as a no-go list. Not forever, but for the period you've set yourself. Refuse distractions that look like good opportunities. As Warren Buffett often reminds us, the difference between successful people and truly successful people is their ability to say no to almost everything.
Warren Buffett's lesson on giving up
Basically, what this method reveals is that clarity costs something. Giving up 20 goals that are important to you is a difficult act. It requires you to trust your judgement, to accept that you can't do everything, and to choose what really matters to you rather than what matters to others.
Warren Buffett has devoted almost his entire professional life to Berkshire Hathaway. He has not tried to multiply projects, roles or identities. He chose a field, he understood it better than anyone, and he invested all his energy in it for decades. That's not luck. It's the result of a rarely equalled discipline of focus.
You don't need to manage billions to apply this principle. All you need is honesty with yourself, a pen, a blank sheet of paper, and the willingness to let go of the things that distract you in order to get on with what matters.
What you can remember today
Warren Buffett's 25/5 rule is not just another productivity method. It's an invitation to rethink your relationship with ambition. Scattered ambition is a form of restlessness. Concentrated ambition is a strength.
If you were to learn just one thing from this article: your 20 secondary objectives are not a reserve. They are obstacles disguised as opportunities. Warren Buffett asks you to see them for what they are, and to have the courage to say no to them.
Focus is not a lack of ambition. It's the most demanding form it can take.
