Sources of Einstein’s comments

Leopold Infeld, Albert Einstein: His work and its influence on our world. Charles Scribner’s Sons,1950, p. 110

Max Born, The Born-Einstein Letters. Macmillan, 1971, pp. 168-69, 192.

Albert Einstein, “Physics and Reality,” in Ideas and Opinions, Dell Publishing, 1973, pp. 307-308, 310-311.

Albert Einstein, “The Fundaments of Theoretical Physics,” in Ideas and Opinions, Dell Publishing, 1973, p. 326.

Albert Einstein, Lettersto Solovine, Philosophical Library, 1987, p. 115

K. Przibram, ed. Albert Einstein. Letters on Wave Mechanics. Philosophical Library, 1986, p. 39.