Back to Guides
Legends February 16, 2026 Biography Editor @ eCalcy 15 min read

Warren Buffett: The Oracle's Investment Philosophy

Deep dive into the mind of the world's greatest investor. Learn about value investing, moats, and the patience required for billions.

Warren Buffett: The Oracle's Investment Philosophy

Warren Buffett didn't get rich overnight. In fact, 99% of his wealth was created after his 50th birthday. His secret? Time, patience, and a relentless focus on 'Intrinsic Value'.

Rule No. 1: Never Lose Money

Buffett's first rule of investing is simple: "Never lose money." Rule number two is: "Never forget rule number one." This doesn't mean he never has a bad quarter; it means he prioritizes Capital Preservation over chasing risky 'moonshot' stocks.

The Concept of the Moat

Buffett looks for companies with an 'Economic Moat'—a unique competitive advantage that protects them from competitors, much like a moat protects a castle. Whether it's the brand of Coca-Cola or the ecosystem of Apple, a moat ensures long-term profitability.

Buffett's Daily Habits

  • Reads 500 pages every single day.
  • Stays within his "Circle of Competence".
  • Thinks in terms of decades, not quarters.

Put this into practice

Start planning your legends with our free Compounding Tool.