IV. Knowledge of the Human Being According to Body, Soul or Spirit, Brain and Thinking — The Liver as a Sensory Organ

But from this you can see that after seven years you will no longer have the substance that you have inside you today. You have expelled it and formed a new one. If it were the substance that counted, then, for example, Mr. Dollinger would not be the person sitting there today, because the substances he had back then have gone, they have evaporated. Since then he has become a completely new person in terms of substance. But he was already addressed by the same name back then. He is still the same today, but it is not the substance. That which continually holds the substance together as a force, that which, when the substance goes out of any one part of the body, carries a new one there in return – you can see the substance when you lay a person on the dissecting table, but you cannot see that which is extended as a force in the person – that is the so-called supersensible.