“As time goes on, I get more and more convinced that the right method in investment is to put fairly large sums into enterprises which one thinks one knows something about and in the management of which one thoroughly believes.” Forget what the economy is doing; just find well-managed companies, buy some shares, and don’t try to be too clever. And if that approach sounds familiar, it’s most famously associated with Warren Buffett, the world’s richest investor—and a man who loves to quote John Maynard Keynes.”