What do Warren Buffett and Friedrich Nietzsche have in common? Why does Baruch Spinoza's understanding of irrational emotions help explain financial markets? How did Voltaire's success in a bond lottery arbitrage shape his writing? Can David Hume teach an investor when to buck the consensus and when to heed it?Exploring these questions and many others, Ethan A. Everett reveals the surprising lessons we can learn about investing from major philosophers. Demystifying ideas and texts that can often seem intimidating or irrelevant, he shows how philosophical concepts can be fruitfully applied to financial markets. Everett shares how philosophers' insights have informed his development as an investor, and he considers how great investors have embodied philosophical wisdom in their own endeavors.Inviting and engaging, The Investment Philosophers presents evergreen insights in language that is accessible to readers who are beginning their journeys in finance and philosophy. Ranging from the birth of modern securities markets in seventeenth-century Amsterdam to recent trends like meme stocks, this book shows why a philosophical perspective can prove invaluable to challenging common assumptions in finance.