John Spears, managing director at Tweedy Brown, shares his passion for value investing, sparked at just 12 years old. He recounts the humbling lessons from an early investment disaster and the importance of tracking insider buying. The conversation reveals Spears' admiration for Warren Buffett and his preference for high-quality, albeit 'dull', stocks like Nestle. He emphasizes achieving satisfactory returns over chasing unrealistic profits while advocating for a debt-free lifestyle and global diversification in investments, all influenced by his Quaker values.