That is the wrong question to ask…You can’t go into science thinking of a Nobel Prize. You can only go into science because you’re interested in it. - Venkatraman Ramakrishnan

I remember reading a Scientific American article about the use of new physical techniques – including neutron scattering – as a method for unravelling the structure of the ribosome. I was fascinated. I knew ribosomes were a big fundamental problem in science and this was a method for chipping away at it.

It takes a certain amount of courage to tackle very hard problems in science, I now realise. You don't know what the timescale of your work will be: decades or only a few years. Or your approach may be fatally flawed and doomed to fail. Or you could get scooped just as you are finalising your work. It is very stressful.

Many in my family were ambivalent about it, but my mother encouraged me to put aside my fears. Vera (my wife) and I finally decided to leave Utah, where we were very happy, take a 40 per cent salary cut and move to the Laboratory of Molecular Biology at Cambridge.