Italy to England??

Early career

Russell in 1907

Russell began his published work in 1896 with German Social Democracy, a study in politics that was an early indication of a lifelong interest in political and social theory. In 1896 he taught German social democracy at the London School of Economics.^[105] He was a member of the Coefficients dining club of social reformers set up in 1902 by the Fabian campaigners Sidney and Beatrice Webb.^[106]
He now started an intensive study of the foundations of mathematics at Trinity. In 1898 he wrote An Essay on the Foundations of Geometry which discussed the Cayley–Klein metrics used for non-Euclidean geometry.^[107] He attended the International Congress of Philosophy in Paris in 1900 where he met Giuseppe Peano and Alessandro Padoa. The Italians had responded to Georg Cantor, making a science of set theory; they gave Russell their literature including the Formulario mathematico. Russell was impressed by the precision of Peano's arguments at the Congress, read the literature upon returning to England, and came upon Russell's paradox. In 1903 he published The Principles of Mathematics, a work on foundations of mathematics. It advanced a thesis of logicism, that mathematics and logic are one and the same.^[108]
At the age of 29, in February 1901, Russell underwent what he called a "sort of mystic illumination", after witnessing Whitehead's wife's acute suffering in an angina attack. "I found myself filled with semi-mystical feelings about beauty ... and with a desire almost as profound as that of the Buddha to find some philosophy which should make human life endurable", Russell would later recall. "At the end of those five minutes, I had become a completely different person."^[109]
In 1905 he wrote the essay "On Denoting", which was published in the philosophical journal Mind. Russell was elected a Fellow of the Royal Society (FRS) in 1908.^[64][75] The three-volume Principia Mathematica, written with Whitehead, was published between 1910 and 1913. This, along with the earlier The Principles of Mathematics, soon made Russell world-famous in his field.
In 1910 he became a University of Cambridge lecturer at Trinity College where he studied. He was considered for a Fellowship, which would give him a vote in the college government and protect him from being fired for his opinions, but was passed over because he was "anti-clerical", essentially because he was agnostic. He was approached by the Austrian engineering student Ludwig Wittgenstein, who became his PhD student. Russell viewed Wittgenstein as a genius and a successor who would continue his work on logic. He spent hours dealing with Wittgenstein's various phobias and his frequent bouts of despair. This was often a drain on Russell's energy, but Russell continued to be fascinated by him and encouraged his academic development, including the publication of Wittgenstein's Tractatus Logico-Philosophicus in 1922.^[110] Russell delivered his lectures on Logical Atomism, his version of these ideas, in 1918, before the end of World War I. Wittgenstein was, at that time, serving in the Austrian Army and subsequently spent nine months in an Italian prisoner of war camp at the end of the conflict.

First World War

During World War I, Russell was one of the few people to engage in active pacifist activities. In 1916, because of his lack of a Fellowship, he was dismissed from Trinity College following his conviction under the Defence of the Realm Act 1914.^[111] He later described this as an illegitimate means the state used to violate freedom of expression, in Free Thought and Official Propaganda. Russell played a significant part in the Leeds Convention in June 1917, a historic event which saw well over a thousand "anti-war socialists" gather; many being delegates from the Independent Labour Party and the Socialist Party, united in their pacifist beliefs and advocating a peace settlement.^[112] The international press reported that Russell appeared with a number of Labour MPs, including Ramsay MacDonald and Philip Snowden, as well as former Liberal MP and anti-conscription campaigner, Professor Arnold Lupton. After the event, Russell told Lady Ottoline Morrell that, "to my surprise, when I got up to speak, I was given the greatest ovation that was possible to give anybody".^[113][114]
litary or naval service".^[118]