Jeff Bezos weathered Amazon's 94% stock crash during the dot-com bust by focusing on business fundamentals, not market panic — a strategy that helped turn the company into a $2.2 trillion giant.

Jeff Bezos, one of the world's biggest tech tycoons (and one of the richest men on the planet), began his Amazon adventure in 1994 in Washington state, back when he still had some hair. At that time, ...