The truth is inherently timeless and the principles laid out by George S. Clason in his classic guide to financial wealth The Richest Man in Babylon remain as useful in the twenty-first century as they were when Clason began writing these lessons in small handbook form in 1926 and published them. As a book four years later, Clason's basic lesson, Pay Yourself First, which requires you to set aside at least ten percent of your income before you spend the money on anything else, is now a basic principle in many financial advice books.