Malala Yousafzai offers Stephen Fry a tour of Oxford University

Nobel laureate Malala Yousafzai showcased her witty side during a recent Twitter exchange with British actor and author Stephen Fry.

Appreciating her Malala Fund's association with Apple to aid underprivileged girls’ education, Fry said she was an inspiration. But there's something he wasn't happy with, and it was her choice of university, said Fry.

"Had the honour of meeting @Malala at a @gatesfoundation event in New York last year," Fry tweeted, adding: "What an inspiration. Shame about her choice of university, but every diamond has one small flaw - it only emphasises its quality."

Fry is an alumnus of University of Cambridge, considered Oxford's arch-rival.

Malala tweeted back with a cheeky reply, offering to give Fry a tour of Oxford so he could see what he missed. "No one is perfect but I'd be happy to give you a tour of Oxford so you can see what you've missed," she wrote, to which he replied saying he would do the same for her at Cambridge.

"Haha! Ouch! And I'd be happy to do the same for you at Cambridge!" the actor wrote.

Malala is currently pursuing Philosophy, Politics, and Economics at Lady Margaret Hall, Oxford University.

In 2014, Malala, who was almost killed by Taliban soldiers for encouraging girls’ education in Pakistan, became the youngest person to be awarded the Nobel Peace Prize. She is also the youngest person to be named a U.N. Messenger of Peace.

“If you want to see your future bright, you have to start working now [and] not wait for anyone else,” she said at the acceptance ceremony.