Warren Buffett is the second richest man in the world who has donated $31 billion to charity. He bought his first stock at age 11 and encourages investing early. He still lives in the modest house he bought over 50 years ago, drives his own car, and does not socialize with high society or use technology like cell phones. His principles of living simply, focusing on value over brands or status, and investing in others have led to his great success.