Bertrand Russell

Bertrand Arthur William Russell, 3rd Earl Russell (18 May 1872 – 2 February 1970), was an English philosopher, logician, and social reformer. He was one of the early 20th century's prominent logicians and a founder of analytic philosophy, along with his predecessor Gottlob Frege, his friend and colleague G. E. Moore, and his student and protégé Ludwig Wittgenstein. Russell with Moore led the British "revolt against idealism".