“The question of whether a computer can think is no more interesting than whether a submarine can swim.”
-- Edsgar Dijkstra
"...in a broader sense, the term thinking machine is a misnomer. No machine has ever thought about the eternal questions: Where did I come from? Why am I here? Where am I going? Machines don't think about their future, their ultimate demise, or their legacy. To ponder such questions requires consciousness and a sense of self. Thinking machines don't have these attributes, and given the current state of our knowledge they're unlikely to attain them in the foreseeable future."
-- Leo Chalupa (in John Brockman's "What To Think About Machines That Think")