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 purchased a small farm at age 14 using savings. Buffett still lives in the modest house he bought over 50 years ago and does not have an excessive lifestyle - he drives his own car and does not have security. His principles are to not spend more than needed, focus on goals, and be yourself.