The principal difference between love and hate is that love is an irradiation, and hate is a concentration. Love makes everything lovely; hate concentrates itself on the object of its hatred. All the fearful counterfeits of love — possessiveness, lust, vanity, jealousy — are closer to hate: they concentrate on the object, guard it, suck it dry.
There are many counterfeits of character, but the genuine article is difficult to be mistaken.Samuel Smiles
Trolls are only counterfeits, made by the Enemy in the Great Darkness, in mockery of Ents, as Orcs were of Elves.