Human Knowledge and Its Significance for Man and the Cosmos

Consider once more the curious fact that numbers and numbers of grains of wheat do not go to the producing of new wheat plants but are given over to the purpose of supplying human beings with food. These grains of wheat, as we have heard, are diverted from their direct line of evolution as grains of wheat. Some grains of wheat, on the other hand, bring forth other grains of wheat, and these again others. But numberless grains of wheat are split off, as it were, and diverted to another sphere of activity altogether. They are used for the purpose of food for human beings and this has nothing directly to do with the onward course of their own stream of evolution.