"With the advent of cognitive science, intelligence has become intelligible. It may not be too outrageous to say that at a very abstract level of analysis the problem has been solved. But consciousness or sentience, the raw sensation of toothaches and redness and saltiness and middle C, is still a riddle wrapped in a mystery inside an enigma. When asked what consciousness is, we have no better answer than Louis Armstrong's when a reporter asked him what jazz is: 'Lady, if you have to ask, you'll never know.'"
Steven Pinker, from How the Mind Works
Steven Pinker, from How the Mind Works