"He's right, of course."Richard smiled, saying, "Well, I don't follow that sort of thing normally, but it's become much more important than ever before."It was a great joy for Richard to keep running at the social event, particularly when he was joined by Katie or the kids.The fact he lived long enough to see his children become adults — with all three now studying medicine or science at university — was deeply significant to Richard."I never thought that I'd see them all get to 18 when I'm still here," he said Every decision feels urgent."He told of his decision to receive experimental treatment based on his team's melanoma research and how the questions about what contributed to his three-year survival were now being explored in clinical trials."That gives me hope for myself and for patients around the world," he said.And then, as was Richard's style, he urged the graduates to go on to achieve great things in their field, just as he did in his brilliant career."I share this because what you do matters," he said