Quotation by John Berger

Cow and horse dung, as muck goes, are relatively agreeable. You can even become nostalgic about them. They smell of fermented grain, and on the far side of their smell there is hay and grass. Chicken shit is disagreeable and rasps the throat because of the quantity of ammonia. When you are cleaning out the henhouse, you're glad to go to the door and take a deep breath of fresh air. Pig and human excrement, however, smell the worst because men and pigs are carnivorous and their appetites are indiscriminate. The smell includes the sickeningly sweet one of decay. And on the far side of it is death.