The germ theory of disease refers to the discovery in the late 19th century that some infectious diseases are caused by microorganisms, small organisms too small to see without magnification, that invade the host. The theory supplanted earlier explanations for disease such as miasma theory.
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Famous quotes containing the words germ, theory and/or disease:
“He represents the privilege of the intellect, the power, namely, of carrying up every fact to successive platforms, and so disclosing, in every fact, a germ of explanation.”
—Ralph Waldo Emerson (1803–1882)
“Every theory is a self-fulfilling prophecy that orders experience into the framework it provides.”
—Ruth Hubbard (b. 1924)
“What is the disease which manifests itself in an inability to leave a party—any party at all—until it is all over and the lights are being put out?... I suppose that part of this mania for staying is due to a fear that, if I go, something good will happen and I’ll miss it. Somebody might do card tricks, or shoot somebody else.”
—Robert Benchley (1889–1945)