"I've never done anything half-heartedly; it's a disservice to me and the audience if I do it half-heartedly"

This quote by Jack Kirby speaks with the significance of offering your all to whatever you do. He thinks that if you don't put your full effort into something, it is a disservice to both yourself and the audience. He is stating that if you don't offer it your all, you will not be able to attain the best possible outcome. He is also stating that if you do not put your complete effort into something, the audience will not have the ability to value it as much as they could if you had actually offered it your all. This quote is a reminder to constantly give your best effort and to never choose anything less than your best. It is a tip to always strive for quality and to never ever give up. It is a reminder to always put your heart and soul into whatever you do, and to never ever do anything half-heartedly.