"Without a subject there is no object in the world, without understanding there is nothing to understand, without mind no matter. You think that matter comes first, and then what we call mind. Where is this matter? Where have you ever seen matter? You see oak, fir, slate, and granite, and all sorts of other materies, as the old architects called them, never matter. Matter is the creation of the mind, not the reverse. Our entire world is thought, not wood and stone. We learn to think or reflect upon the thoughts, which the Thinker of the world, invisible, yet everywhere visible, has first thought. What we see, hear, taste, and feel, is all within us, not without. Sugar is not sweet, we are sweet. The sky is not painted blue, we are blue. Nothing is large or small, heavy or light, except as to ourselves. Man is the measure of all things, as an ancient Greek philosopher asserted; and man has inferred, discovered, and named matter. And how did he do it? He called everything, out of which he made anything, matter; materia first meant nothing more than wood used for building, out of which man built his dwelling. Here you have the whole secret of matter. It is building-material, oak, pine, birch, whichever you prefer."