You can't wait for inspiration. You have to go after it with a club. - Jack London
In January 2006 I read an article in Time Magazine called The Hidden Secrets of the Creative Mind. It really inspired me. The last paragraph/answer is on my office wall:
Q. What advice can you give us nongeniuses to help us be more creative?
A. Take risks, and expect to make lots of mistakes, because creativity is a numbers game. Work hard, and take frequent breaks, but stay with it over time. Do what you love, because creative breakthroughs take years of hard work. Develop a network of colleagues, and schedule time for freewheeling, unstructured discussions. Most of all, forget those romantic myths that creativity is all about being artsy and gifted and not about hard work. They discourage us because we're waiting for that one full-blown moment of inspiration. And while we're waiting, we may never start working on what we might someday create.