When I joined the Sunday Times the people I was competing with were all 10 or 15 years younger, they all had double firsts from Oxford or Cambridge, they were all bright as new pins.
Cambridge was the place for someone from the Colonies or the Dominions to go on to, and it was to the Cavendish Laboratory that one went to do physics.
However, I should perhaps add that during the 20 years I have been back in Cambridge, I have been actively involved in the teaching of undergraduates, as well as of course supervising research students.
I knew I wanted to be a professional triathlete, but I didn't know it was possible until I won the junior champs. My dad said I should give Cambridge a go to see if I could do both, but it was only ever a trial.
I did a term at Cambridge University studying medicine, so I could potentially have followed in Mum and Dad's footsteps and become a doctor.
I grew up in Cambridge in England, and my love of mathematics dates from those early childhood days.
When I was teaching at Harvard in the 1970s, I went to Project Incorporated in Cambridge and took photography classes. I didn't even know how to aim the camera in those days.
I was born in Cambridge but brought up in and around Winchester, in Hampshire. I've also lived in Hong Kong and America.