She can speak clearly and not like any other ditzy girl.
She is beautiful without showing every inch of her skin.
Thank you, Natalie Portman, for being a wonderful example of classiness.
Congratulations on your Golden Globe!
**Update: You commenters are so correct. Natalie Portman getting knocked up by her Black Swan choreographer and being engaged so quickly isn't the best example of classiness. But everything else is. **