Note 35 — Front matter
Reading edition
Professor Garnett in the Encyclopaedia Britannica. By "Force" is understood "any cause which tends to alter a body's natural state of rest, or of uniform motion in a straight line." Of the nature of such causes science professes to know very little, and as Clerk-Maxwell, who knew as much as most men, sang apropos of a lecture of Professor Tait's:
... Tait writes in lucid symbols clear one small equation;
And Force becomes of Energy a mere space-variation.