I have 4 obscure quotes - well, 3 obscure ones, anyway. Tell me who said it and the episode. I will screen comments.
I'll start with the easy one:
1. "This is a ceremonial dagger, which my fascinating friends the gypsies sometimes use."
2. "Well, an attractive woman should be much more than just competent."
3. "Lieutenant, you don't really want the purse now, do you?"
4. "Well, I must say, Sir Norman, you look a good deal younger than the last time we met."