Innumerable are the illusions and legerdemain-tricks of Custom: but of all these, perhaps the cleverest is her knack of persuading us that the Miraculous, by simple repetition, ceases to be Miraculous.

Thomas Carlyle (1795-1881) Scottish essayist and historian

Sartor Resartus, Book 3, ch. 8 (1834)
    (Source)

Quoting Herr Teufelsdröckh.

This chapter first appeared in Fraser's Magazine for Town and Country, Vol. 10, No. 55 (1834-07).