The very cheapness of literature is making even wise people forget that if a book is worth reading, it is worth buying. No book is worth anything which is not worth much; nor is it serviceable, until it has been read, and re-read, and loved, and loved again; and marked, so that you can refer to the passages you want in it.
John Ruskin, John D. Rosenberg (1964). “The Genius of John Ruskin: Selections from His Writings”, p.306, University of Virginia Press