The curiosity of Man, and the cunning of his reason, have revealed much of what Nature held hidden. - Paul Churchland

Eliminative materialism is the thesis that our common sense conception of psychological phenomena constitutes a radically false theory, a theory so fundamentally defective that both the principles and ontology of that theory will eventually be displaced, rather than smoothly reduced, by completed neuroscience.

We do have an organ for understanding and recognizing moral facts. It is called the brain.

The basic idea is that cognitive activities are ultimately just activities of the nervous system; and if one wants to understand the activities of the nervous system, then the best way to gain that understanding is to examine the nervous system itself.