This is the transcript of a speech made to a working class audience in 1884 by Karl Pearson, F.R.S., Professor of Applied Mathematics at University College, London. Karl Pearson was a polymath, born in Islington in 1857, he studied Mathematics at Cambridge University, later Physics at the University of Heidelberg, and at various other seats of learning; he studied metaphysics, physiology, Roman Law, 16th Century German Literature, English Law and Socialism and became a protégé of Sir Francis Galton. Although influenced by…