What he was undertaking was, in appearance at least, beyond human strength. Success was so unlikely that the attempt seemed madness. It is only when you get down to a task that the obstacles and dangers become apparent. You have to begin in order to see how difficult it is going to be to finish. Every beginning is a battle against resistance. The first step you make in an enterprise inexorably reveals what it entails. The difficulty to which we set our hands pricks like a thorn.

