Of course, I like to keep my private life, private.

There are signs that the age of petroleum has passed its zenith. Adjusted for inflation, a barrel of crude oil now sells for three times its long-run average. The large western oil companies, which cartellised the industry for much of the 20th century, are now selling more oil than they find, and are thus in the throes of liquidation.

One of my grandfathers, actually, having gone out there as a minister, decided he would better serve the people as a doctor. So at a very late age - at the age of 38 in fact - he changed course and decided to become a doctor.

It's the kind of clothes that mothers and daughters can wear, in terms of concept... It's not about age. It's about taste, and it's about lifestyle. I believe women of all ages can wear anything.