I don’t usually mix maths with morality, but two events collided last week to force the issue. On Tuesday, I awoke to the horrific news of events in Manchester. Early indications were a terror attack; 22 dead, scores injured, all innocent. On the train ride into the office, I found myself probing the deeper meaning to my work. I represent a company whose core mission is to ‘raise standards in mathematics’. As it happens, I was due to chair a meeting that very day on the meaning behind our mission.