…Thus in the early morning is the heart raised and head cleared, as one steps onto the field of kale. And for an hour or so it is possible to remain in this frame of mind. But not for many hours. The morning goes well enough, but afternoon sees a different man; the monotony of the task (give me that tractor again!), and the aching of the back, begin to numb the mind until it gradually stops working altogether, like a watch breaking down, and by the time evening approaches you feel little better than a rubbish heap of rotting thoughts, so that a hollow ghost stands where in the radiance of the morning had stood the living man. [p.125, 1]
Collis, John S. (1973) 1975. The Worm Forgives the Plough. Penguin. ISBN: 0 14 00.3953 8.