If you believe in what you are doing, then let nothing hold you up in your work. Much of the best work of the world has been done against seeming impossibilities. The thing is to get the work done.
Thinking fascinates me, and I probably spend too much time in my mind. My wife says that my perfect world is to be in the Suburban driving, with her next to me and the boys in the back seat and complete silence for two thousand miles.