Dr who third doctor quotes Spearhead from Space

Liz Shaw: You really believe in a man who has helped to save the world twice, with the power to change his physical appearance? An alien who travels though time and space in a police box?

Doctor Henderson: Doctor Lomax, I took that blood sample from an adult male patient. Now you tell me that it's not human blood. I don't know if that makes me a doctor or a vet. But it's still my job to look after him.

The Doctor Oh, oh, no. That's not me at all!

Channing: No one can destroy the Nestenes!