"Give a healthy man a diet of charcoal, water, lime salts, and air; say to him, 'Bread contains no other substance, here is bread, the material food of man, live on this food,' and yet the man, if he eat of these, will die with his stomach distended. So with all other foods; give man the unorganized materialistic constituents of food in unlimited amounts, and starvation results. No! matter is not food, but a carrier of food."
"What is food?"
"Sunshine. The grain of wheat is a food by virtue of the sunshine fixed within it. The flesh of animals, the food of living creatures, are simply carriers of sunshine energy. Break out the sunshine and you destroy the food, although the material remains. The growing plant locks the sunshine in its cells, and the living animal takes it out again. Hence it is that after the sunshine of any food is liberated during the metamorphosis of the tissues of an animal although the material part of the food remains, it is no longer a food, but becomes a poison, and then, if it is not promptly eliminated from the animal, it will destroy the life of the animal. This material becomes then injurious, but it is still material.
"The farmer plants a seed in the soil, the sunshine sprouts it, nourishes the growing plant, and during the season locks itself to and within its tissues, binding the otherwise dead materials of that tissue together into an organized structure. Animals eat these structures, break them from higher to lower compounds, and in doing so live on the stored up sunshine and then excrete the worthless material side of the food. The farmer spreads these excluded substances over the earth again to once more take up the sunshine in the coming plant organization, but not until it does once more lock in its cells the energy of sunshine can it be a food for that animal."
"Is manure a food?" he abruptly asked.
"No."
"Is not manure matter?"
"Yes."
"May it not become a food again, as the part of another plant, when another season passes?"
"Yes."