Think and Grow Rich

Published in 1937. Still one of the most direct books on ambition ever written.

Hill spent decades studying the most successful people of his era and tried to identify what they had in common. The answer, he concluded, was less about talent or method and more about desire — burning, specific, unwavering desire combined with a refusal to accept failure as permanent.

The mastermind principle — surrounding yourself intentionally with people who raise your thinking — is one of the older ideas in the book and still one of the most relevant.

Some of it is dated. Some of it is as sharp now as it was then. Worth reading slowly and deciding for yourself which parts are which.