Works of St. Anselm, tr. by Sidney Norton Deane, [1903], at sacred-texts.com
BUT, just as it has been proved that there is a being that is supremely good, since all goods are good through a single being, which is good through itself; so it is necessarily inferred that there is something supremely great, which is great through itself. But, I do not mean physically great, as a material object is great, but that which, the greater it is, is the better or the more worthy, ‑‑wisdom, for instance. And p. 40 since there can be nothing supremely great except what is supremely good, there must be a being that is greatest and best, i. e., the highest of all existing beings.