I am deeply saddened to hear that Paul has passed away.  His scientific brilliance was only matched by his intense passion for science.  He worked in a wide range of areas and had in depth knowledge of them all.  He was a patient and creative teacher, always willing to help people who wanted to learn.  From my days at ASU, through working for him at UCL, then afterwards just visiting him to catch up, I was always excited and inspired by our conversations.

I liked Paul and I miss him.

My condolences to his wife.