You Don't Have to Be Pretty. You don't owe prettiness to anyone. Not to your boyfriend/spouse/partner, not to your co-workers, especially not to random men on the street. You don't owe it to your mother, you don't owe it to your children, you don't owe it to civilization in general. Prettiness is not a rent you pay for occupying a space marked "female".
Erin, at A Dress A Day.
I thoroughly recommend reading the rest of the post, especially if you've ever felt that you shouldn't wear something because you're too old/skinny/fat whatever.
* image of Diana Vreeland by Andy Warhol, 1980