Transformar adjetivos em substantivos em inglês

Hi, people! I've got a dude about "adjectival nouns", I need to know if it's allowed in english like in portuguese and if the adjective can go to the plural in some cases. Bellow, I will give a example of this:

Can I say, for instance, "The smarts are more attractive" (Os inteligentes são os melhores)?


Thanks =D