It is to the Riddle of the Sphinx that I have devoted fifty years of professional life as an anthropologist.

A major difficulty is that the answer to the Riddle of the Sphinx is partly a product of the answers that we already have given to the riddle in its various forms.

It is of first-class importance that our answer to the Riddle of the Sphinx should be in step with how we conduct our civilisation, and this should in turn be in step with the actual workings of living systems.

I was in constant demand, in my professional life and my personal life.

There is no facet of my professional life that doesn't require or request improvisation.

I enjoy the work, I enjoy every minute of my professional life.