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.