William Kingdon Clifford (1845-1879) was a British mathematician and philosopher. Clifford was educated at University College London, King's College London, and Trinity College. Considered one of the greatest minds of the nineteenth century on account of his work in geometric algebra, Clifford is also hugely respected for his philosophical writing. He is the author of The Ethics of Belief, Elements of Dynamic, Seeing and Thinking, and On the Space-Theory of Matter, which many consider a stepping-stone to Einstein's General Theory of Relativity.
