"Gordon Pask... spent his life developing an elegant theory of learning that stands without peer. His achievement was to establish a unifying framework that subsumes the subjectivity of human experience and the objectivity of scientific tradition. Sponsored by governments and industries on both sides of the Atlantic, his life-long research spanned biological computing, artificial intelligence, cognitive science, logic, linguistics, psychology, and artificial life. His was an original approach to age-old questions of how the human organism learns from its environment and relates to others through language."