London, July 08 : Actor Brad Pitt has said that quality time with his family means more than anything else.The actor is famously the father of six children with Angelina Jolie: Maddox, Zahara, Pax, biological daughter Shiloh and twins - Knox, Vivienne.“The biggest change for me was being a dad,” the Mirror quoted him as saying.“I am really proud of this family. They’re brothers and sisters, and