In 1962-1963 Percy worked for 6 months with Albert Schweitzer at his hospital in Lambarene.
Alongside his career in architecture, Percy joined Dr. Schweitzer’s Hospital Fund in 1965 and was its chair from 1995 to 2016. During that time he managed the transition of the charity to Reverence for Life UK and redirected its focus first to supporting projects in India and then in Tanzania as well as the UK.
In 2016 he passed the role onto his son James, in order to concentrate his efforts on translating essential parts of Volume III of Schweitzer’s Philosophy of Civilisation into English and completing his commentary on the issues raised therein, bringing this work to self-publication in two volumes in 2020.
He believes that he owes it to the memory of Schweitzer to keep his legacy alive because it can help us all to meet the challenges of our times.
Percy remains involved with the charity as an Ambassador and continues to realise the aim of making Schweitzer’s ethical values and ideals accessible to all.