If you want knowledge, you must toil for it; if food, you must toil for it; and if pleasure, you must toil for it: toil is the law.
John Ruskin (1871). “Selections from the Writings of John Ruskin”, p.439

If you want knowledge, you must toil for it; if food, you must toil for it; and if pleasure, you must toil for it: toil is the law.