The charge that an idea is radical, impractical, or long- haired is met by showing that a prominent businessman has favored it†an additional tactic in this strategy of defense†is to assert that Winston Churchill once sponsored the particular idea. If one is challenged, a sufficiently careful investigation will show that he did.

-Galbraith,John Kenneth
  Economics and the Art of Controversy.

Nature is nowhere accustomed more openly to display her secret mysteries than in cases where she shows tracings of her workings apart from the beaten paths; nor is there any better way to advance the proper practice of medicine than to give our minds to the discovery of the usual law of nature, by careful investigation of cases of rarer forms of disease.

-Harvey,William
  Letter to  John Vlackveld, 24  Apr.

  In the sphere of natural investigation, as in poetry and painting, the delineation of that which appeals most strongly to the imagination, derives its collective interest from the vivid truthfulness with which the individual features are portrayed.

-Hume, David
^62  Kosmos (translated as Cosmos,1897).