I was a terrible science student, and for a long time, I thought I just didn't understand science. It turned out that I didn't understand post-Newtonian science. I could actually understand how people thought scientifically about the world in the past.

I teach 18- to 21-year-olds - the 'Harry Potter' generation. They grew up as voracious readers, reading books in this exploding genre. But at some point, I would love for them to give Umberto Eco or A.S. Byatt a try. I hope 'A Discovery of Witches' will serve as a kind of stepping-stone.

I couldn't resist hiding some historical details and a few clues relevant to the plot and characters of 'A Discovery of Witches' throughout the pages of the novel.

I found a 'lost' manuscript called the Book of Soyga that had once belonged to Queen Elizabeth I's court astrologer, John Dee, in Oxford's Bodleian Library. Everybody thought it was the missing key to Dee's interest in magic. Of course, it wasn't really lost. It was there, in the catalog.

I tell students, 'If you are learning from YouTube I almost don't want to teach you because what you learn from YouTube it takes 10 times as long to unlearn.' They do an approximation of the centre of the note, an approximation of the interpretation, a cloned version.

Unemployment rates among Americans who never went to college are about double that of those who have a postsecondary education.

The giant fraud that is Britain's education system strides ever onwards, messing up many more lives than it improves.

Education is the most powerful tool for everything but certainly to create opportunities for yourself, and I know that not everyone has the privilege of an education like here in America.