I think it's important to take a break, you know, from the public eye for a while, and give people a chance to miss you. I want longevity. I don't want to get out there and run myself ragged and spread myself thin.
Originally, in the early eighties, the drug hypothesis was among the first which occurred to scientists.
My time at Shell was a most valuable experience because it taught me to look at the world in a long-term way. Shell takes a 20-year view on events and plans for different scenarios. It makes you see the world as a kind of large matrix.