The Cult of Skaro sought to acquire, amongst other things, ambition from humanity, which was felt by Dalek Sec when he transformed into a Human-Dalek. (TV: Evolution of the Daleks [+]Helen Raynor, Doctor Who series 3 (BBC One, 2007).)
In an interview hosted by Mickey for his website in early 2006, he asked Henry Van Statten if collecting alien artefacts was his ambition. (PROSE: Henry Van Statten [+]BBC webteam, Who is Doctor Who? (BBC, 2005).)