Louis DeryfusWarren Buffett, Steve Jobs, and Tim Cook All Said 1 Key Habit Truly Sets Successful People Apartverified_publisherInc Magazine - Marcel SchwantesOne valuable lesson from three of the world's most successful people. What is one thing that Warren Buffett, Tim Cook, and the late Steve Jobs agreed on without a shred of doubt? Buffett taught a valuable lesson on success when he offered up this gold nugget of truth related to our work lives: "In the …