Greek and Latin
Major Grantly asks Jane to excuse herself from the room so he can talk to Mr. and Mrs. Crawley. Trollope states that even though Jane has only studied Greek and Latin she knew that Major Grantly was about to ask Mr. Crawley’s permission to marry Grace. [KD 2006]
Nil conscire sibi
“To be conscious of no guilt.” Mr. Crawley says this to himself after he realizes that Major Grantly is asking his permission to marry Grace. The phrase is from Horace’s Epistles, and Crawley has used it earlier, in Chapter 62. [KD 2006]
Sources: Horace, Epistle 1.1.61.
Mr. Crawley tries (without success) to maintain a Roman fortitude when explaining to Major Grantly that Grace cannot marry him. Forbearance under duress (without expression of emotion) is traditionally ascribed to the Roman character. [KD & RR 2006; rev. 2011]