Pictures? Why talk stupidly about pictures when he could talk intelligently about engines? Languages? If he had nothing to say, what was the good of saying it in three languages? Manners? These presumable dukes and dignitaries whom he was passing on Pall Mall might be able to enter a throne-room more loftily, but he didn't want to enter a throne-room.
The protagonist expresses disdain for superficial discussions about art and culture, suggesting that practical knowledge, like that of engines, holds more value. He questions the necessity of speaking multiple languages if one's contributions lack substance, indicating a belief in the importance of genuine communication over mere formality.
He reflects on the pretentiousness of the elite he encounters, such as dukes and dignitaries, implying that their polished manners do not impress him....
