Actor Michael J. Fox, 30 years old when he began dealing with Parkinson’s disease, has now written three best-selling books and raised $285 million for Parkinson’s research as well as continuing his acting career. His life offers three ways to continue leading despite adversity.

With the passing of actor Andy Griffith in 2012, his most famous TV character, Sheriff Andy Taylor of Mayberry, is worth another look for his low-key brand of leadership. Here are a few of the sheriff’s lessons on caring more and fussing less.

After so many corporate-leadership scandals and the public’s shrinking confidence in their leaders, should we be rethinking the way leadership is taught? The way leadership has been taught doesn’t seem to be paying off, asserts author Barbara Kellerman.

Growing up, no one considered Harry Truman a leader. He was a kid with thick glasses who mostly stayed home, working the farm or reading. But the course of his life changed when he entered the Army during World War I. One rainy night, he faced a moment of true terror.