I find it useful to trace motivation to four sources, each built on the one below. Daniel Dennett’s Tower of Generate-and-Test names the first three floors. The fourth is mine.
The ground floor is genes. They interact inside the body and set the drives we start with. That is the biological problem: heritability near half for most behavioral traits. Tooby calls the results evolved mental programs, and the seeking system is one of them. Dennett calls a creature that runs on this floor alone Darwinian.
The second floor is reflection on what the genes produce. I fold in learning from reward here, which Dennett gives a floor of its own and calls Skinnerian. His Popperian creature goes further. It simulates an action in its head and anticipates the outcome before risking it in the world.
The third floor is other minds. Everyone we meet runs the first two floors too, and we borrow their words, tools, and habits. Dennett calls this creature Gregorian, after the psychologist Richard Gregory. Cultural cognition is this floor at work.
The fourth floor is reflection on the other three: noticing which drive, which lesson, and which borrowed idea is doing the pushing. That is reflexivity. Dennett’s tower folds it into the Gregorian floor, since language is what makes it possible. I keep it separate because it is the floor people climb least.
Ideology is what the floors build when they fuse. Belief, reason, and desire bind into one bundle that feels like plain truth from inside. Politics shows it well. Genes tilt the temperament, the second floor writes the story, the third supplies the tribe, and only the fourth can take the bundle apart.