Recently, someone investigated 1000 millionaires in the United States. The results summarized the three most common types of getting rich: the first type is diligence type; the second type is opportunity type; the third type is mutually beneficial type. Diligence can make people rich, which is a truth that many people understand. Opportunities can also make people rich, but it needs a lot of luck. However, the type of mutual benefit is controllable. More interestingly, the first two types only account for 20% of the surveyed population, while 80% of the respondents became rich and millionaires by benefiting others while helping themselves.