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Updated: May 11, 2025
The meaning of the physical world appears in consciousness, through the syntheses it forms, as objective, although it is not an object of sense but of thought; and, further, this very objectivity subsists in the form of generalisations and meanings which create standards for each individual in his relations with the physical world.
He gives a very impressive picture of the mystery of the chemistry of the plant, showing how small is the number of food-stuffs and raw materials in comparison to the thousands of highly complex chemical substances which the plant produces, and how much work there is involved in de-oxydising the food and in forming syntheses.
Since Wöhler’s discovery that urea could be built up by artificial combination, more and more of the carbon-compounds which were previously regarded as specialities of the vital force have been produced by artificial syntheses. The highest synthesis, that of proteids, has not yet been discovered, but perhaps that, too, may yet be achieved.
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