“Gunderson’s book was, and is, a gem. From his first historical essay on Descartes and La Mettrie...to his discussion of various early forays into Artificial Intelligence, Gunderson’s comments and analyses sparkle with whimiscal humor, arresting analogies, and salient and trenchant insights. His extended postscript contains valuable further discussions of program receptivity and resistance and other issues which show that his ideas are as relevant now as they were in 1971. In many respects, the field -- driven by Dennett, Dreyfus, Haugeland, Churchland, and others -- has since gone in directions first taken by Gunderson fourteen years ago. The republication of this work, long out of print, is both timely and welcome. It is a classic in modern philosophy of mind.” -- William Wimsatt, University of Chicago