A Cambridge professor accused of plagiarism quit last night after the university launched an investigation into him. In a statement, Cambridge said it 'has begun an investigation following new information about Professor Arday's academic qualifications and honorary appointments'. 'We are aware that Jesus College, Cambridge, will be taking their own steps in relation to some of these matters.' In a surreal twist, Professor Arday suggested he might one day return to the top of academia, concluding: 'This is not the end of my work. There have been several apparent discrepancies in the qualifications Professor Arday claims to hold.