Intelligent Investment Today - The Warren Buffett Way

The Seven Deadly Sins of Investing: Benjamin Graham’s Lessons for Modern Value Investors

David Coombs

In this special episode of Intelligent Investment Today, we explore value investing through the lens of the Seven Deadly Sins — revealing how Pride, Greed, Envy, Wrath, Sloth, Gluttony, and Lust quietly sabotage investor decisions every day. Drawing on the timeless wisdom of Benjamin Graham, we examine how emotional impulses, market hype, and behavioral biases can derail even the smartest investors.

Each sin takes the stage as we uncover:

  • How Pride fuels overconfidence and destroys discipline
  • Why Greed pushes investors toward speculation, hype, and AI-driven manias
  • How Envy turns investing into a competition instead of a strategy
  • Why Wrath leads to panic selling and revenge-trading during downturns
  • How Sloth encourages shortcuts, tips, and ignorance over research
  • Why Gluttony creates bloated portfolios with no direction
  • How Lust seduces investors into speculative “story stocks” and bubbles

Grounded in Graham’s principles of intrinsic value, margin of safety, and emotional control, this episode reveals why investing is as much a moral discipline as a financial one — and how mastering your temperament is the real key to long-term success.

If you’ve ever felt the pull of market hype or emotional temptation, this episode will help you recognise the whisper of each “sin” and choose the rational, disciplined path that Graham championed.

Support the show