Everyone knows Patrick Tse Yin aspires to staying young and maintaining his clean, handsome looks despite being 70. With his ubiquitous sunglasses and ponytail, he could almost pass as the Asian version of Karl Lagerfeld. Yesterday, he admitted on the radio that he'd always wanted a facelift, but had been told by his doctor that surgery would move his sideburns. Tse has developed a unique theory on how to keep young, although his philosophy is not easily decipherable. 'I try to eat less now. I have to keep my body fit,' he said. 'I also hope that each part of my body is self-sustaining. If that 'department' is in debt, I would gain in the other 'department'. I would also give vitamins to each department. It doesn't matter if I'm old.'