History of Mathematics (London, 1901), p. 451.
[924]. Bolyai [Janos] when in garrison with cavalry officers, was provoked by thirteen of them and accepted all their challenges on condition that he be permitted after each duel to play a bit on his violin. He came out victor from his thirteen duels, leaving his thirteen adversaries on the square.—Halsted, G. B.
Bolyai’s Science Absolute of Space (Austin, 1896), Introduction, p. 29.
[925]. Bolyai [Janos] projected a universal language for speech as we have it for music and mathematics.—Halsted, G. B.
Bolyai’s Science Absolute of Space (Austin, 1896), Introduction, p. 29.
[926]. [Bolyai’s Science Absolute of Space]—the most extraordinary two dozen pages in the history of thought!—Halsted, G. B.
Bolyai’s Science Absolute of Space (Austin, 1896), Introduction, p. 18.
[927]. [Wolfgang Bolyai] was extremely modest. No monument, said he, should stand over his grave, only an apple-tree, in memory of the three apples: the two of Eve and Paris, which made hell out of earth, and that of Newton, which elevated the earth again into the circle of the heavenly bodies.—Cajori, F.
History of Elementary Mathematics (New York, 1910), p. 273.
[928]. Bernard Bolzano dispelled the clouds that throughout all the foregone centuries had enveloped the notion of Infinitude in darkness, completely sheared the great term of its vagueness without shearing it of its strength, and thus rendered it forever available for the purposes of logical discourse.—Keyser, C. J.