In a long distance race, everyone gets tired. The winner is the runner who figures out where to put the tired, figures out how to store it away until after the race is over. Sure, he's tired. Everyone is. That's not the point. The point is to run.
Seth GodinYou're competing against people in a state of flow, people who are truly committed, people who care deeply about the outcome. You can't merely wing it and expect to keep up with them. Setting aside all the safety valves and pleasant distractions is the first way to send yourself the message that you're playing for keeps
Seth Godin