“If we want to keep the old language, still using such terms as “spiritual” and “material,” the spiritual must mean “the indefinable,” that which, because it is living, must ever escape the framework of any fixed form. Matter is spirit named. After all this, the brain deserves a word for itself! For the brain, including its reasoning and calculating centers, is a part and product of the body. It is as natural as the heart and stomach, and, rightly used, is anything but an enemy of man. But to be used rightly it must be put in its place, for the brain is made for man, not man for his brain. In other words, the function of the brain is to serve the present and the real, not to send man chasing wildly after the phantom of the future.”