Girls Are Often Better Ignorant

In 99% of situations a naive girl, clueless about a lot of things in life is much more attractive than someone who is experienced or knowledgeable. Even of anime characters only CC and possibly few others managed to stay attractive despite learning a lot.

The rest of them somewhat better when they are as clueless and airhead as Yui Hirasawa or Towa. The more they learn the worse they get.

Bible starts with the story where Eve easts an apple from a tree of knowledge. That is a metaphor of her learning something that later made her and Adam's lives much more miserable than before. Girls should avoid learning too much and stay clueless.