"The important thing to me is that I'm not driven by people's praise and I'm not slowed down by people's criticism. I'm just trying to work at the highest level I can"
"Tomorrow is the most important thing in life. Comes into us at midnight very clean. It's perfect when it arrives and it puts itself in our hands. It hopes we've learned something from yesterday"
"I was married to Margaret Joan Howe in 1940. Although not a scientist herself she has contributed more to my work than anyone else by providing a peaceful and happy home"