By all means begin your folio; even if the doctor does not give you a year, even if he hesitates about a month, make one brave push and see what can be accomplished in a week. It is not only in finished undertakings that we ought to honour useful labour.

Robert Louis Stevenson (1850–1894) Scottish essayist, novelist, poet

Essay (1878-04), “Æs Triplex,” Cornhill Magazine, Vol. 37
    (Source)

Collected in Virginibus Puerisque and Other Papers (1881).