Daguerreotype
Will replace painting. (See Photography.)
Letter D
Doubt
Worse than outright negation.
More from Letter D
Damascus
The only place where the art of making swords is understood. Every good blade is from Damascus.
Dance
"It isn't dancing any more, it's tramping about."
Danton
"Let us dare, and dare again, and forever dare."
Darwin
The fellow who says we're sprung from monkeys.
Days
The master has days: for trimming the beard, for taking a purge, etc. And so has Madame, days which she calls "critical" at certain times of the month.