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Essays, Book 1, ch. 31, "That a Man must not be too hasty in judging of Divine Ordinances" (1580) [tr. Cotton (1686), Hazlitt (1877)] - Montaigne, Michel de | WIST Quotations
Nothing is so firmly believed, as what we least know. [Qu'il faut sobrement se mêler de juger des ordonnances divines.] Alt. trans.: "Nothing is so firmly believed, as that which a man knoweth least." [tr. Florio (1603)] "Nothing is so firmly believed as what is least known."