There was a time when Norman Osborn was just a man, though he has always had a surplus of ambition. Even then, however, there was a monster lurking deep within. The Goblin Serum brought that monster roaring to the surface, and caused his ambition to rage unchecked. He became obsessed, first with the acquisition of power, then with the destruction of Spider-Man. Every action he has taken since, every evil act he has committed, has been with those two goals in mind.