Related:

• A cosmos without the Doctor scarcely bears thinking about. -- Master, The Five Docto
• I am the one your ancestors called "The Doctor".
• Once I was sick, and I had to go to an ear, nose, and throat man to get well.
  There are ear doctors, nose doctors, throat doctors, gynecologists, proctologists--any place you got a hole there's a guy who specializes in your hole....
• Careful, careful--I might explode! -- Doctor Who, REVENGE OF THE CYBERMEN
• I fooled them all. I am the Master. -- Doctor, The Space Museum
• I am Fourth Doctor of Borg. Your jelly babies will be assimilated.
• Now, assuming that I'm right. And I invariably am... -- The Docto
• A man is the sum of his memories, you know--a Time Lord even moreso. -- Doctor, The Five Docto
• When a doctor doctors a doctor, does the doctor doing the doctoring doctor as the doctor being doctored wants to be doctored or does the doctor doing the doctoring doctor as he wants to doctor?