DOCTOR: All elephants are pink. Nellie is an elephant, therefore Nellie is pink. Logical?
DAVROS: Perfectly.
DOCTOR: You know what a human would say to that?
DAVROS: What?
TYSSAN: Elephants aren't pink.
DAVROS: Bah. Humans do not understand logic.
ROMANA: They're not slaves to it like the Daleks or the Movellans.