Why Daddy? I asked you why, You told me. I asked you how, You showed me. And now I have a son, and when that little one; Asks me why, I tell him. And asks me how, I show him. When my patience is growing

​ ​Stephen William Hawking. 1942 - 2018. ​ Cosmologist, space traveller and hero. Stephen Hawking is the former Lucasian Professor of Mathematics at the University of Cambridge and author of A Brief History