As an actor, to have achieved financial stability is amazing. But I always have this weird fear that I'm not going to get any more work; it's about not having enough money.
He knew a lot about his grandparents - and perhaps he feels he's been endowed with abilities to go into people's heads who are long dead - but, to a certain extent, he's making it up.
However, I survived and started to read all chemistry books that I could get a hand on, first some 19th century books from our home library that did not provide much reliable information, and then I emptied the rather extensive city library.

