supernatural powers. . . . even the enlightened Greeks never completely freed themselves from this mysticism of number and form.” (pp. 25­6) It is easy to see with Dantzig how the first crisis in mathematics arose with the Greek attempt to apply arithmetic to geometry, to translate one kind of space into another before printing had given the means of homogeneity: “This confusion of tongues persists to this day. Around infinity have grown up all the paradoxes of mathematics: from the arguments of Zeno to the antinomies of Kant and Cantor.” (p. 65) It is difficult for us in the twentieth century to realize why our predecessors should have had such trouble in recognizing the various languages and assumptions of visual as opposed to audile- tactile spaces. It was precisely the habit of being with one kind of space that made all other spaces seem so opaque and