First let us start with the idea of 'Science', on (Page 38), as knowledge of facts built around a perfect principle. The scientific investigation into anything is a cold-blooded investigation of a necessity. We speak about knowing, about science as being absolute knowledge. Science is absolute knowledge in so far as the facts of science are demonstrable. The principle of any science is just as invisible and just as theoretical as God is or Spirit. No one has ever seen God. No one has ever seen Life, we see what Life does. No one has ever seen Intelligence we experience it. No one has ever seen thought but we think. No one has ever seen Love but we feel it. So no one has ever seen anything that partakes of First Cause.

Science, as such, starts with a theory which may or may not be correct and it subjects its investigation to that theory and if in every instance it gets a certain definite result then it announces a principle back of the theory. That is the way all scientific truth is discovered. But no one has ever seen any of these principles which science announces. That is the way laws are discovered. That is the way electricity was discovered, the way the possibility of the steam engine was discovered. The laws of chemical affinity, cohesion and adhesion are all discovered in exactly the same way and always will have to be unless someone by pure intuition will discover them. There are two ways in which knowledge comes to us; one is by pure intuition, which we consider to be a direct importation of Spirit or First Cause to the individual; the other is by experience.

This is also true of the science of mind, the principle of mind. No one has seen Mind or Spirit. We say there is a Universal Mind but no one ever saw It. We say God is Spirit but no one ever saw God. The Bible said, "No man hath seen God at any time only the Son, He hath revealed Him." In our own language, no one has ever seen the Cause. We can't see it but because we do see an effect we know there must be a cause. This would be a logical explanation of that mystical saying, "No man hath seen God at any time only the Son, He hath revealed Him." Nothing is more evident than that we live and since we live we must have life and since we have life, there must be life. The only proof we have of mind is that we think. If anyone attempts to tell us what Mind or Spirit is they are either joking or the joke is on them because no one can know what Mind is. No one can know what Spirit is. No one can know what Life Itself is. It just is, you see. We know that it is because we experience, because we live, because we think, because we feel. We should never try to discover what Mind is. What we discover is that Mind is. Someone said to Edison. "What is electricity?" He said. "Electricity is. Use it." Mind is and we use it whether we are conscious of it or not.