Beliefs must be lived in for a good while, before they accommodate themselves to the soul’s wants, and wear loose enough to be comfortable.

Oliver Wendell Holmes, Sr. (1809-1894) American poet, essayist, scholar

Article (1861-04), “The Professor’s Story [Elsie Venner],” ch. 30, Atlantic Monthly, Vol. 7, No. 42
    (Source)

Originally serialized as “The Professor’s Story,” but collected as the novel Elsie Venner, ch. 30 (1861).