Vanity
From Tardis Wiki, the free Doctor Who reference
Before his apparent death, the Beast claimed that he would live on in the vanity of men. (TV: The Satan Pit)
An alternate version of the Third Doctor was mostly identical to his N-Space counterpart, albeit "a bit vainer", according to his aforementioned counterpart. (COMIC: Dead on Arrival)
The immortal Jack Harkness acknowledged that he was guilty of vanity when he expressed his concern over how he would physically age over a million years. (TV: Last of the Time Lords)
The Eleventh Doctor told Clara Oswald that the Tenth Doctor had vanity issues which had led to him aborting the eleventh of his twelve regenerations. (TV: The Time of the Doctor)
