Pablo_Stafforini comments on Rationality Quotes - April 2009 - Less Wrong

11 Post author: Eliezer_Yudkowsky 18 April 2009 01:26AM

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Comment author: Pablo_Stafforini 18 April 2009 09:59:07PM 3 points [-]

Give to any hypothesis which is worth your while to consider just that degree of credence which the evidence warrants.

Bertrand Russell, A History of Western Philosophy, New York, 1945, p. 816

Comment author: gwern 19 April 2009 02:52:24AM *  10 points [-]

"The plain consequence is (and it is a general maxim worthy of our attention), 'That no testimony is sufficient to establish a miracle, unless the testimony be of such a kind, that its falsehood would be more miraculous, than the fact, which it endeavours to establish; and even in that case there is a mutual destruction of arguments, and the superior only gives us an assurance suitable to that degree of force, which remains, after deducting the inferior.' When anyone tells me, that he saw a dead man restored to life, I immediately consider with myself, whether it be more probable, that this person should either deceive or be deceived, or that the fact, which he relates, should really have happened. I weigh the one miracle against the other; and according to the superiority, which I discover, I pronounce my decision, and always reject the greater miracle. If the falsehood of his testimony would be more miraculous, than the event which he relates; then, and not till then, can he pretend to command my belief or opinion."

An Enquiry Concerning Human Understanding, by David Hume