Bertrand Arthur William Russell was born to parents Viscount Amberley and Katherine, on 18 May 1872. In Trellech, United Kingdom; at the age of three he became an orphan and was raised by his grandmother. Although he was not sent to school, he was educated by governesses and tutors. He acquired a perfect knowledge of the French and German languages. In 1890 he attended Trinity College and Cambridge, in 1895 he was elected a Fellow of Trinity but did not obtain the post because he had already left school in the summer of 1834. At school he obtained a first-class education and understanding in philosophy; In December 1834 he married Alys Pearsall Smith. After a short period of study in Berlin, he and his wife moved near Haslemere. In 1900 Russell visited a mathematics congress in Paris, here he was impressed by the skill of the mathematician Peano, after which he immediately began to study his work. After studying Peano's work, he wrote his first major book "The Principles of Mathematics" in 1903. With the help of Dr. Alfred Whitehead he proceeded to expand his knowledge of Peano's mathematical logic; In 1908 he was elected a Fellow of the Royal Society. In 1910 he was appointed lecturer by Trinity College, but in 1916 he was stripped of his position.; because he took part in the No Conscription after the outbreak of the First World War, he was heavily fined. He was later offered a job at Harvard, but was refused a passport. He intended to lecture, but was stopped by military authorities. 1918 sentenced to six months in prison for a pacifist article in a magazine. His book "Introduction to Mathematical Philosophy" was written in prison. In 1920 he went to Russia to study Bolshevism, and later, in the autumn,......straitjacket". He also contributed a lot to the foundations of mathematics, with his books and ideas. He is also known for his protests against World War I and the Vietnam War. In May 1901, while Russell was writing one of his books, he discovered a paradox that bears his name. This paradox arises from the connection with the set of all sets which are not members of themselves. which if it exists will be a member of itself and only itself. The meaning of the paradox follows a classical logic, all sentences are implied by contradiction that there was no evidence that could be trusted once it was discovered that this logic underlies all mathematics was contradictory; at one point he said: “The problem in the world is that stupid people are arrogant and intelligent people are full of doubts.”