The True Levellers Standard Advanced (1649)
“I think that’s unfair, Doctor. You certainly don’t expect a man to believe in things that run contrary to his good sense without offering him any reasonable explanation.”
Frost snorted. “I certainly do—if he has observed it with his own eyes and ears, or gets it from a source known to be credible. A fact doesn’t have to be understood to be true. Sure, any reasonable mind wants explanations, but it’s silly to reject facts that don’t fit your philosophy.”
Elsewhen (pp. 161-162)
Short fiction, Off the Main Sequence (2005)
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Robert A. Heinlein 557
American science fiction author 1907–1988Related quotes

Speech in Liverpool (27 October 1903), quoted in The Times (28 October 1903), p. 6.
1900s

"Ricky Gervais: Why I’m an Atheist," WSJ, 2010 http://blogs.wsj.com/speakeasy/2010/12/19/a-holiday-message-from-ricky-gervais-why-im-an-atheist/

Letter to Lady Grenville (27 October 1813), quoted in E. A. Smith, Lord Grey. 1764-1845 (Alan Sutton, 1996), p. 174.
1810s

Isaac Newton, cited in The Watchtower magazine, 1977, 4/15.

Letter to Harrison Blake (20 May 1860); published in Familiar Letters (1865)
Context: Men and boys are learning all kinds of trades but how to make men of themselves. They learn to make houses; but they are not so well housed, they are not so contented in their houses, as the woodchucks in their holes. What is the use of a house if you haven't got a tolerable planet to put it on? — If you cannot tolerate the planet that it is on? Grade the ground first. If a man believes and expects great things of himself, it makes no odds where you put him, or what you show him … he will be surrounded by grandeur. He is in the condition of a healthy and hungry man, who says to himself, — How sweet this crust is!