Humen vaaka

Humen vaaka (Hume's scale) tarkoittaa suurin piirtein sitä, että vaikka todisteet jollekin luonnonlakien vastaiselle ihmeelle olisivat vakuuttavia, todisteet sille, että maailma sittenkin toimii luonnonlakien mukaan, ovat vieläkin vakuuttavampia, vieläpä ylivoimaisesti.

On esitetty, että Humen tapa laskea todisteet olisi virheellinen, mutta tämä vaikuttaa Humen vaakaan käytännössä vain vähän.

https://web.archive.org/web/20140405133910/http://www.iep.utm.edu/hume/ David Hume: "It is experience only, which gives authority to human testimony [regarding miracles]; and it is the same experience, which assures us of the laws of nature. When, therefore, these two kinds of experience are contrary, we have nothing to do but subtract the one from the other, and embrace an opinion, either on one side or the other, with that assurance which arises from the remainder. But according to the principle here explained, this subtraction, with regard to all popular religions, amounts to an entire annihilation [Enquiry, 10.1]."

Internet Encyclopaedia of Philosophy: "in his essay “Of Miracles” from the Enquiry, and is his first sustained attack on revealed religion. It is probably this main argument to which Hume refers. The first of this two-part essay contains the argument for which Hume is most famous: uniform experience of natural law outweighs the testimony of any alleged miracle."