Colin Luther Powell is a retired general in the United States of America, as well as a prolific statesman. He served George W. Bush as a Secretary of State. He became the first African American to obtain this position. Aside from his military and political ventures, he has also proven a very powerful entrepreneurial spirit. For example, he published his thirteen rules of leadership in a magazine. According to these rules, he believed that you need to pay attention to small things, have a decent vision and keep your calmness and kindness. This is how he has succeeded in life.