When our environment fails to challenge our depths, we are tasked to create one which does. Practitioners across the globe continue to use Jiu Jitsu as a tool for personal development. For many, the Jiu Jitsu academy is the one place in which we purposefully practice virtuous action. "On Jiu Jitsu" seeks to codify the mechanisms by which Jiu Jitsu shapes the individual, as the character traits required to achieve mastery in sport are the same which our highest humanity requires. It is the hope of the author that the articulation of these benefits will ensure the reader's continued practice of self-mastery through this sacred medium.