Peter was one of the largest influences on my life. Together with Ted Holden, I was fortunate enough to be taught botany and zoology at A level by these guys from 1970 to 1972, and that set the course for the rest of my life teaching, researching, and more lately environmental advocacy in the US. Happy to have spent the best part of a day with Peter, Ted, and friends in February 2016 at the Green Man and John Hotchkiss’s flat. Peter, you will remain an inspiration of how influential a teacher can be in a young person’s life.