The Old Riddle and the Newest Answer

by John Gerard

[44] Riddle of the Universe, p. 64.

[45] Über die Grenzen der Naturerkennens: Die Sieben Welträthsel, Leipzic, 1882.

[46] Riddle of the Universe, p. 64.

[47] Du Bois-Reymond does not say that they are soluble, but only that he cannot pronounce them "transcendental."

[48] Samuel Laing, Modern Science and Modern Thought, Cheap Edition, p. 19.

[49] Riddle of the Universe, p. 86.

[50] Ibid.

[51] P. 78.

[52] P. 64.

[53] Origin of the Laws of Nature, p. 23.