The Doctor : "Human progress isn’t measured by industry. It’s measured by the value you place on a life. An unimportant life. A life without privilege. That boy who died on the river, that boy’s value is your value. That's what defines an age, that's... what defines a species."

Bill : "Regency England. Bit more black than they show in the movies."
The Doctor : "So was Jesus. History’s a whitewash."