The reason why it’s difficult to change a habit is because you might intend one thing, but you’re working against the background of an entire lifetime of experience that has taught you how to think and behave. It’s your comfort zone, it’s your habit, it’s your addiction. … If you’re not willing to think and perform differently, how are you ever going to change your performance?

~ David Shaner Sensei 

(from “Aikido – The Way of Harmony Podcast” 2008)