The following problem appears in Problems for the Quickening of the Mind, a collection of problems compiled by the Anglo-Saxon scholar Alcuin of York (ca. 735-804 C.E.). Describe a strategy for solving this problem. Do not actually solve the problem. A wolf, a goat, and a cabbage must be moved across a river in a boat holding only one besides the ferryman. How can he carry them across so that the goat shall not eat the cabbage, or the wolf the goat?