Ken Langone's father was a plumber and his mother a cafeteria worker — neither made it past 8th grade — yet Ken became a multi-billionaire investor, builder, and philanthropist. And he did so as an outspoken patriot, defender of capitalism, and man of honor, famously taking on one of the most corrupt politicians of our time — and winning!

In our conversation, we begin with Ken's investment philosophy, including how he became the largest shareholder in Eli Lilly. Next, we dive into leadership lessons and how he co-founded and grew Home Depot into an American icon valued at over $400 billion. But Ken is most proud of the fact that 3,000 associates who began pushing carts in the parking lot have gone on to become multi-millionaires within the company — a feat only possible under capitalism he says.

In the 2000s, Ken had a front-page showdown with then-NY Attorney General Eliot Spitzer. Most of the Wall Street bigwigs in Spitzer's crosshairs cowered and ran, but not Ken. He fought back and won, exposing Spitzer's abuse of power. Ken hilariously recounts his epic battles and demonstrates the importance of fighting for justice and defending the honor of your colleagues, no matter the cost.

Finally, we discuss the impact of Ken's prolific philanthropy, such as his recent $200 million donation to help make NYU Medical School tuition-free. For decades, he's also been a leader in education reform, including one of the greatest urban success stories: Harlem Children's Zone. They have proven that kids from the most difficult areas and family backgrounds can succeed, and have revealed the failings of the teachers' unions and education establishment.

I'm fortunate to call Ken a friend and mentor. There will never be another quite like him, but we should do our best to follow his lead!

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Ep 91: "I whooped his ass!" Legendary Investor & Home Depot Founder Ken Langone on Leadership, Courage & Defeating the Bad Guys

Joe Lonsdale: American Optimist