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The power to assimilate crude inorganic matter as it is found in the soil, and convert it into living protoplasm and other organic substances, or to use such substances in performing physiological function, does not belong to the animal organism. It is the office of plant life or vegetation to convert the primary elements from their crude inorganic state into the organic state. This conversion cannot be accomplished by any synthetic process known to the laboratory. After the plant has raised the crude inorganic matter of the soil into plant protoplasm, the animal may take these and raise them to a still higher plane—that of animal protoplasm. But the animal cannot do the work of the plant. He must get his food either directly or indirectly from the plant kingdom. That is, the animal must either eat the plant or its fruits, or he must eat the animal that has eaten the plant. Food must be in the organic form. Air and water form the only exceptions to this rule.

The power to assimilate crude inorganic matter as it is found in the soil, and convert it into living protoplasm and other organic substances, or to use such substances in performing physiological function, does not belong to the animal organism. It is the office of plant life or vegetation to convert the primary elements from their crude inorganic state into the organic state. This conversion cannot be accomplished by any synthetic process known to the laboratory. After the plant has raised the crude inorganic matter of the soil into plant protoplasm, the animal may take these and raise them to a still higher plane—that of animal protoplasm. But the animal cannot do the work of the plant. He must get his food either directly or indirectly from the plant kingdom. That is, the animal must either eat the plant or its fruits, or he must eat the animal that has eaten the plant. Food must be in the organic form. Air and water form the only exceptions to this rule.

Approximate author period: c. 1940 AD · modern

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Attribution & collection notes
Author or tradition
Herbert M. Shelton
Attribution: attributed
Country attributed
Not established
A country attribution does not establish the earliest origin.
Historical period
Approximate author period: c. 1940 AD · modern
Approximate period for the recorded attribution to Herbert M. Shelton, based on documented lifetime 1895 to 1985. Source: https://www.wikidata.org/wiki/Q2569840 (checked 2026-10-08). This is not a quotation composition date or independent authentication of its attribution. Source: https://www.wikidata.org/wiki/Q2569840 (accessed 2026-10-08).
An author lifetime, approximate period or collection date is not necessarily the date when these words were first written or spoken.
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Supplied reference C; CSV row 314192; supplied attribution, independently unverified

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