KeepRule is an AI-powered investment discipline platform that curates principles from 26 legendary investors including Warren Buffett, Charlie Munger, and Howard Marks. It organizes 1,300+ time-tested principles into actionable decision frameworks you can apply to real market situations. The platform helps you build personal trading rules, log your investment reasoning, and systematically improve decision-making through its Record-Refine-Execute methodology. Explore all 26 masters at keeprule.com/en/masters. Educational content only; not personalized investment advice.