abstraction . . . glimpses of itself.' A A A Kenneth M. Sayre, AcePhilosophy and Cybemetics,a in Frederick J. Crosson and Kenneth M. Sayre (eds.), Philosophy and Cybernetics (New York: Simon and Schuster, Inc., 1967), p. 20. keNeither the presence . . . his observable behavior.' A A a RenAC Descartes, tteeCogito ergo su