" It occurred to me. . .that aberrance is a wholly human construct. There were no such things as monsters outside the human mind. We are vain and arrogant, evolution's highest achievement and most dismal failure, prisoners of our self-awareness and the illusion that we stand in the center, that there is us and then there is everything else but us. But we do not stand apart from or above or in the middle of anything. There is nothing apart, nothing above, and the middle is everywhere - and nowhere. We are no more beautiful and essential or magnificent than an earthworm. In fact - and dare we go there, you and I? - you could say the worm is more beautiful, because it is innocent and we are not. The worm has no motive but to survive long enough to make baby worms. There is no betrayal, no cruelty, no envy, no lust, and no hatred in the worm's heart, and so who are the monsters and which species shall we call aberrant? "

― Rick Yancey , The Final Descent (The Monstrumologist, #4)