Not about highlighters, although she didn't have one, initially. She said glittery, sparkly, shimmery cheeks weren't a good look. She also said no one needs a dozen lipsticks, just the perfect one.
I liked her back then, that was my philosophy too find the perfect thing.
I met her, many years ago, when she came to Holt Renfrew to promote her line. She did my makeup. (It wasn't great, but that's another story, I still liked her original stuff, before Estee Lauder.)
She was right and I also have her make-up books. I only have one Lipstick and the same color for the past 7 years.