Get the Summary of David Goggins's Never Finished in 20 minutes. Please note: This is a summary & not the original book. Original book introduction: Can’t Hurt Me, David Goggins’ smash hit memoir, demonstrated how much untapped ability we all have but was merely an introduction to the power of the mind. In Never Finished, Goggins takes you inside his Mental Lab, where he developed the philosophy, psychology, and strategies that enabled him to learn that what he thought was his limit was only his beginning and that the quest for greatness is unending.