"Materialism and Empirio-criticism: Critical Comments on a Reactionary Philosophy (1908)". Book by Vladimir Lenin. Chapter Five: "The Recent Revolution in Natural Science and Philosophical Idealism". Collected Works, Volume 14, www.marxists.org.
"Materialism and Empirio-criticism: Critical Comments on a Reactionary Philosophy (1908)". Book by Vladimir Lenin. Introduction. Collected Works, Volume 14, www.marxists.org.