You may safely go to school with hope; but ere you marry, should have learned the mingled lesson of the world: that dolls are stuffed with sawdust, and yet are excellent play-things; that hope and love address themselves to a perfection never realised, and yet, firmly held, become the salt and staff of life; that you yourself are compacted of infirmities, perfect, you might say, in imperfection, and yet you have a something in you lovable and worth preserving; and that, while the mass of mankind lies under this scurvy condemnation, you will scarce find one but, by some generous reading, will become to you a lesson, a model, and a noble spouse through life. So thinking, you will constantly support your own unworthiness, and easily forgive the failings of your friend.

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

Essay (1881), “Virginibus Puerisque, Part 2”
    (Source)

First published in Virginibus Puerisque and Other Papers, ch. 1, part 2 (1881).