Paul was a wonderfully enthusiastic scientist and citizen— and I will always remember his commitment to the practice of his scientific research in New Zealand, and the way he encouraged younger members of the scientific community to do the same. "NZ is a great place to do research". Much will be said in the next few days to honour his contribution.
Very best wishes to Paul’s wife Miang,and his family, on this sad day.
Rest in Peace Paul
Sir Paul Callahan at Victoria University at Wellington