On changing your physical state

Sometimes it’s not that you need to become more focused or more disciplined in your work: you just need to change your physical state. If you’re tired, then you should sleep. If you’re sedentary, then you should move. If you’re stuck, get out a piece of paper and put pen to paper instead of staring at a blank computer screen. Put yourself in the desired state of mind by allowing your physical being to be an extension of that state.