EXOD835 Beit Shamai asks Beit Hillel: how can you lie and say the bride is beautiful if she is lame, for example? Isn't it a violation of the Torah commandment to keep far away from a lie? Beit Hillel answers with an analogy about goods purchased in the marketplace. If a man spends a lot of time and a lot of money selecting an item and then asks you what you think of the item, what will you answer? Beit Shamai said that they would say it was beautiful, implying that they gave this answer so as not to insult the person and because to him the item is indeed special. Beit Hillel said the same thing is true with any bride. To the groom, she must be beautiful, even if lame. From this discussion, we can deduce that Beit Shamai measured beauty in objective terms, and if the bride is not objectively beautiful, it would be a lie to say that she is. Beit Hillel, on the other hand, believes that beauty is indeed subjective, "in the eyes of the holder," and thus to every groom she is indeed beautiful. Saying that she is beautiful is not a lie. Shulchan Aruch Even Ha'ezer 65:1 codifies according to Beit Hillel, implying that beauty in Judaism is indeed a subjective quality.