I find the follwing quote validating and liberating. Einstein once said, “I never came upon any of my discoveries through the process of rational thinking.”
I came across the above quote while reading a blog post worth a read if you are so inclined,
http://www.lifeoptimizer.org/2007/08/30/11-sure-fire-ways-to-have-a-calm-and-peaceful-mind
Strategic Alignment & Results 