The Biology of Ethics - The Chronicle Review - The Chronicle of Higher Education:
"While Churchland's intellectual opponents over the years have suggested that you can understand the 'software' of thinking, independently of the 'hardware'—the brain structure and neuronal firings—that produced it, she has responded that this metaphor doesn't work with the brain: Hardware and software are intertwined to such an extent that all philosophy must be 'neurophilosophy.' There's no other way."
Every thought you have is a physical process.
via Arts & Letters Daily