"Oh, it's nothing.
I only wished to say..." (he wanted to repeat a joke he had heard in Vienna and which he had been trying all that evening to get in) "I only wished to say that we are wrong to fight pour le Roi de Prusse!" Boris smiled circumspectly, so that it might be taken as ironical or appreciative according to the way the joke was received.
Everybody laughed.
"Your joke is too bad, it's witty but unjust," said Anna Pavlovna, shaking her little shriveled finger at him.