Physical Tree Topology

Famous quotes containing the words physical and/or tree:

“Theory may be deliberate, as in a chapter on chemistry, or it may be second nature, as in the immemorial doctrine of ordinary enduring middle-sized physical objects.”
—Willard Van Orman Quine (b. 1908)

“A fool sees not the same tree that a wise man sees.”
—William Blake (1757–1827)