Every discovery opens a new field for investigation of facts, shows us the imperfection of our theories. It has justly been said, that the greater the circle of light, the greater the boundary of darkness by which it is surrounded.
Sir Humphry Davy (1840). “The Collected Works of Sir Humphry Davy ...: Salmonia, or Days of fly-fishing. Consolation in travel, or The last days of a philosopher”, p.362
