What are physical characteristics of Equality 7-2521 in the book Anthem by Ayn Rand?

Equality 7-2521 and Liberty 5-3000 stand out from the other characters because of their physical beauty. Both of them are young, tall, strong, straight, slim, and gorgeous. Their looks reflect their individual pride, fearlessness, and strength of character. In describing Liberty 5-3000's eyes, Equality 7-2521 even explicitly says they express those qualities. Everyone else seems to be hunched, weak, dull-eyed, and sickly looking.

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