Oh dear. Over the weekend, Cambridge University’s Twitter account celebrated the graduation of its most recent cohort with some pearls of wisdom that it attributed to one of its former students – AA Milne, the creator of Winnie Pooh.

Milne graduated from Trinity College Cambridge with a B.A. in Mathematics at the beginning of the twentieth century and it was to him that the social media staff turned for inspiration, writing in a now deleted tweet:

‘Congratulations to everyone graduating from #Cambridge in absence today! Promise me you’ll always remember: You’re braver than you believe, and stronger than you seem, and smarter than you think.”...