What makes a person someone of value? How do we judge others in terms of their importance and status? Most people have heard of Donald Trump – but how many know the name Maximilian Kolbe?

My earliest memory of “judging a book by its cover” was when I was seven years old. Browsing a car showroom with my mum and dad, I spotted an old man approaching one of the salesmen. He wore what looked to me like old farmer’s clothes along with a woollen hat that had seen better days.