Rener Gracie, BJJ black belt instructor, has helped develop top UFC competitors. Talks about origins of Gracie jujitsu, significance of starting as a white belt, evolving online jiu-jitsu and Gracie Combatives program. Also discusses standing up to bullies, importance of jujitsu training for police officers, creating a functional hoodie, principles of jujitsu, understanding others and resolving customer issues, trust at Gracie University, success of Gracie Breakdown YouTube channel and strategic thinking in jujitsu.