Lecture VII

We must remember that for long, long ages men have known that the right manure is what comes out of the horses' stalls, out of the cow barn and so on; the right manure is what comes off the farm itself. In recent times when everything has become materialistic, people have been saying: Look here! we can do it much more easily by finding out what substances are in the manure and then taking them out of the mineral kingdom: mineral fertilizer!