This book taught me some great principles. A part of all you earn is yours to keep. You need to live on less than you earn; as you make more, don’t let your expenses grow. Seek advice from people who know more than you. Make your money work for you through things like stocks and other things. Save 10% of everything you earn. A man’s wealth is not in his wallet, but in his income, so insure you have a future income.