Instincts are veiled by complex actions

Our instincts furnish the raw material for our actions. When a stranger smiles at us, we smile at the next passerby. When our boss tells us we did a good job, we buy flowers for our wives. When a professor yells at us, we pick a fight with our housemates. The variety of our actions do not deny the power of our instincts: they indicate our creativity in acting on them.