Bertrand Arthur William Russell was born at Trelleck on 18th May, 1872. His parents were Viscount Amberley and Katherine, daughter of 2nd Baron Stanley of Alderley. At the age of three he was left an orphan. His father had wished him to be brought up as an agnostic; to avoid this he was made a ward of Court, and brought up by his grandmother. Instead of being sent to school he was taught by governesses and tutors, and thus acquired a perfect knowledge of French and German. In 1890 he went into residence at Trinity College, Cambridge, and after being a very high Wrangler and obtaining a First Class with distinction in philosophy he was elected a fellow of his college in 1895. But he had already left Cambridge in the summer of 1894 and for some months was attaché at the British embassy at Paris. In December 1894 he married Miss Alys Pearsall Smith. After spending some months in Berlin studying social democracy, they went to live near Haslemere, where he devoted his time to the study of philosophy. In 1900 he visited the Mathematical Congress at Paris. He was impressed with the ability of the Italian mathematician Peano and his pupils, and immediately studied Peano's works. In 1903 he wrote his first important book, The Principles of Mathematics, and with his friend Dr. Alfred Whitehead proceeded to develop and extend the mathematical logic of Peano and Frege. From time to time he abandoned philosophy for politics. In 1910 he was appointed lecturer at Trinity College. After the first World War broke out, he took an active part in the No Conscription fellowship and was fined £ 100 as the author of a leaflet criticizing a sentence of two years on a conscientious objector. His college deprived him of his lectureship in 1916. He was offered a post at Harvard university, but was refused a passport. He intended to give a course of lectures (afterwards published in America as Political Ideals, 1918) but was prevented by the military authorities. In 1918 he was sentenced to six months' imprisonment for a pacifistic article he had written in the Tribunal. His Introduction to Mathematical Philosophy (1919) was written in prison. His Analysis of Mind (1921) was the outcome of some lectures he gave in London, which were organized by a few friends who got up a subscription for the purpose. In 1920 Russell had paid a short visit to Russia to study the conditions of Bolshevism on the spot. In the autumn of the same year he went to China to lecture on philosophy at the Peking university. On his return in Sept. 1921, having been divorced by his first wife, he married Miss Dora Black. They lived for six years in Chelsea during the winter months and spent the summers near Lands End. In 1927 he and his wife started a school for young children, which they carried on until 1932. He succeeded to the earldom in 1931. He was divorced by his second wife in 1935 and the following year married Patricia Helen Spence. In 1938 he went to the United States and during the next years taught at many of the country's leading universities. In 1940 he was involved in legal proceedings when his right to teach philosophy at the College of the City of New York was questioned because of his views on morality. When his appointment to the college faculty was cancelled, he accepted a five-year contract as a lecturer for the Barnes foundation, Merion, Pa., but the cancellation of this contract was announced in Jan. 1943 by Albert C. Barnes, director of the foundation. Russell was elected a fellow of the Royal Society in 1908, and re-elected a fellow of Trinity College in 1944. He was awarded the Sylvester medal of the Royal Society, 1934, the de Morgan medal of the London Mathematical Society in the same year, the Nobel Prize for Literature, 1950. In a paper "Logical Atomism" (Contemporary British Philosophy. Personal Statements, First series. Lond. 1924) Russell exposed his views on his philosophy, preceded by a few words on historical development.1 Principal publications German Social Democracy, 1896 Foundations of Geometry, 1897 A Critical Exposition of the Philosophy of Leibniz, 1900 Principles of Mathematics, vol. 1, 1903 Philosophical Essays, 1910 (with Dr. A. N. Whitehead) Principia mathematica, 3 vols, 1910-13 The Problems of Philosophy, 1912 Our Knowledge of the External World as a Field for Scientific Method in Philosophy, 1944 Principles of Social Reconstruction, 1916 Mysticism and Logic and Other Essays, 1918 Roads to Freedom: Socialism, Anarchism and Syndicalism, 1918 Introduction to Mathematical Philosophy, 1919 The Practice and Theory of Bolshevism, 1920 The Analysis of Mind, 1921 The Problem of China, 1922 The ABC of Atoms, 1923 (with Dora Russell) The Prospects of Industrial Civilisation, 1923 Logical Atomism, 1924 The ABC of Relativity, 1925 On Education, 1926 The Analysis of Matter, 1927 An Outline of Philosophy, 1927 Sceptical Essays, 1928 Marriage and Morals, 1929 The Conquest of Happiness, 1930 The Freedom and Organisation 1814-1914, 1934 In Praise of Idleness, 1935 Which Way to Peace?, 1936 (with Patricia Russell editor of) The Amberley Papers, 2 vols, 1937 Power: a new Social Introduction to its Study, 1938 An Inquiry into Meaning and Truth, 1941 History of Western Philosophy, 1946 Human Knowledge, its Scope and Limits, 1948 Authority and the Individual, 1949 Unpopular Essays, 1950