Found 2 items, similar to summum bonum.
English → English (WordNet) Definition: summum bonum summum bonum n : the supreme good in which all moral values are included or from which they are derived
English → English (gcide) Definition: Summum bonum Summum bonum \Sum“mum bo”num\ [L.] (Philos.) The supreme or highest good, -- referring to the object of human life. [Webster 1913 Suppl.]