Immanuel Kant
Immanuel Kant was referenced by Ricky several times on the Xfm shows due to the closeness of his name with a swear word they weren't allowed to say on air. Ricky, who studied philosophy at university, claims that Kant is his favorite philosopher, but it's unclear as to whether that is true or just another reason for Ricky to say his name. Said Ricky "Kant must be extremely popular in Surrey. Whenever I drive through surrey I hear discussions of his work..."
Kant is mentioned on 17 November 2001 and 28 May 2005.