More on De Mortuis Nil Nisi Bonum from Infoplease:

• De Mortuis Nil Nisi Bonum - De Mortuis Nil Nisi Bonum Of the dead speak kindly or not at all. Source: Dictionary of Phrase and ...
• Dictionary of Phrase and Fable: D - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "D"