„I have a philosophy, you do the best you can, and the things you can’t do anything about, don’t give any thought to them. … I feel I have to make a contribution. When I was doing surgery, I made it by operating. Now I try to make it by speaking about preventive medicine.“
Interview with CNN's chief medicine reporter Sanjay Gupta (April 2015) https://www.youtube.com/watch?v=hGQTpxjbwaM.