Claims

Even after being influenced by Charlie Munger to buy better businesses, Warren Buffett continued his extreme-discount hunting at age 80 while managing hundreds of billions at Berkshire (knowing it couldn't move the needle), because he loved the hunt itself—exemplified by his discovery of undervalued Korean stocks.

The efficient market joke—'A $20 bill on the street? No, someone would have picked it up already'—illustrates how shortcuts in thinking can make you miss obvious opportunities and convince yourself you're smarter than you are.