When a girl feels that she's perfectly groomed and dressed she can forget that part of her. That's charm. The more parts of yourself you can afford to forget the more charm you have.
 F. Scott Fitzgerald, Flappers and Philosophers (1920). copy citation

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Author F. Scott Fitzgerald
Source Flappers and Philosophers
Topic charm forgetting
Date 1920
Language English
Reference
Note
Weblink http://www.gutenberg.org/files/4368/4368-h/4368-h.htm

Context

“Write home and tell your mother you're going' to stay another two weeks.
"If you'll tell me——"
"All right—I'll just give you a few examples now. First you have no ease of manner. Why? Because you're never sure about your personal appearance. When a girl feels that she's perfectly groomed and dressed she can forget that part of her. That's charm. The more parts of yourself you can afford to forget the more charm you have. "Don't I look all right?"
"No; for instance you never take care of your eyebrows. They're black and lustrous, but by leaving them straggly they're a blemish. They'd be beautiful if you'd take care of them in one-tenth the time you take doing nothing.” source