DOCTOR: Yeah, I think she was a man back then. I'm fairly sure that I was, too. It was a long time ago, though.
BILL: So, the Time Lords, bit flexible on the whole man-woman thing, then, yeah?
DOCTOR: We're the most civilised civilisation in the universe. We're billions of years beyond your petty human obsession with gender and its associated stereotypes.
BILL: But you still call yourselves Time Lords?
DOCTOR: Yeah. Shut up.
Doctor Who episode 'World Enough Time'