Bleach

Ichigo'S Inner Hollow (内部 虚, Inner Hollow) / the Real Zangetsu (斬月):
Ichigo, what's the difference between a king and his horse? And I'm not talking about obvious stuff like "One's a person and one's an animal" or "One has two legs and one has four." FORM, ABILITY and POWER , that's what's puzzling. If their form, ability and power are exactly the same, why is it that one becomes the king and leads into battle, while the other becomes the horse and carries the king?! So what's the characteristic that distinguishes these two beings? There's only one answer. Instinct! In order for identical beings to get stronger and gain the power they need to become king, they must search for more battles and power! They thirst for battle, and live to mercilessly, crush, shred, and slice their enemies! Deep, deep within our body lies the honed instinct to kill, and slaughter our enemies! My friend you don't have that! You use your brain to try to win a fight. You try to defeat your enemies with reason and logic! And it doesn't work! You're trying to cut them with a sheathed sword! That's why you're weaker than me, Ichigo![16]