It was a harder day's journey than yesterday's, for there were long and weary hills to climb; and in journeys, as in life, it is a great deal easier to go down hill than up. However, they kept on, with unabated perseverance, and the hill has not yet lifted its face to heaven that perseverance will not gain the summit of at last.
Charles Dickens (1995). “Nicholas Nickleby”, p.262, Wordsworth Editions