Portrait of the artist: Miriam Margolyes, actor
'I've been very lucky " I've worked consistently and I haven't had to kiss a lot of people on stage'What got you started?You're born with the performing gene. I was a show-off at school, so it was inevitable I would become an actress.Who or what have you sacrificed for your art?Nothing at all. I have lived an entirely egotistical life, for myself alone.What's the best advice anyone ever gave you?Max Stafford-Clark on…