http://www.pbs.org/wgbh/nova/elegant/part-flash.html

Hello Reductionists! Now explain to me how these particles and the four known forces of the universe can account for meaning, intentionality, free will, perception, memory, syntactic rules, our notions of causation, identity, supervenience, do I need to go on? How by moving my mouth and emitting special sounds, called 'language' can I act on other living organisms, modify the environment and so on? What abstract structures, not covered by physics, are involved in these processes?