1. Bacon, F.: 1870, The Works of Francis Bacon, R. L. Ellis and J. Speeding (eds.), Longmans and Co., London, Vol. III.
2. Bacon, F.: 1915, The Advancement of Learning, Everyman Edition, J. M. Dent and Sons, Ltd., London.
3. Bacon, F.: 1960, The New Organon, Library of Liberal Arts Press, New York.
4. Descartes, R.: 1931, The Philosophical Works of Descartes, Vol. I (transi, by E. S. Haldane and G. R. T. Ross), Cambridge University Press, Cambridge.
5. Descartes, R.: 1946, Regulae ad directionem ingenii, Henri Gouhier (ed.), J. Vrin, Paris.