Everything we do, every thought we've ever had, is produced by the human brain. But exactly how it operates remains one of the biggest unsolved mysteries, and it seems the more we probe its secrets, the more surprises we find. — Neil deGrasse Tyson Copy Share Image
In all probability, mental states are processes and activities of the brain. Exactly what activities, and exactly at what level of description, remains to be seen. — Patricia Churchland Copy Share Image
