Successfully doing creative science is hard. The further along you get in a research career the more things are competing for your time and energy and the more distracted you are from your primary goals. This distraction becomes increasingly problematic when it distracts your subconscious as well as your conscious mind. A short post by Paul Graham does an excellent job of describing why this is the case and how you can manage access to that creative part of your brain. In particular he recommends minimizing the amount of time spent chasing money and being involved in disputes. These are both things that we end up doing a lot of in academia and in my experience Graham is right about their ability to consume the productive thought processes we rely on. I also love this quote from Newton:
I see I have made myself a slave to Philosophy, but if I get free of Mr Linus’s business I will resolutely bid adew to it eternally, excepting what I do for my private satisfaction or leave to come out after me. For I see a man must either resolve to put out nothing new or become a slave to defend it.
(via James Horey)