One book one pen one child and one teacher can change the world Malala Yousafzai dhavalvadi 4 years ago One book one pen one child and one teacher can change the world Malala Yousafzai 1 1 One book one pen one child and one teacher can change the world Malala Yousafzai One book one pen one child and one teacher can change the world Malala Yousafzai