This kind of dignified creature is only capable of inhabiting places where they have pure water, clean air, and soil. Since they hate human beings, they rarely show their appearance,, and think they are better than them. They are a majestic creature, and killing one is a great crime. They only appear to pure maidens. This unicorn refers to humans as 'foolish'. 

 I would like the unicorn to have a majestic and strong voice however that is NOT required! Do whatever you feel is right