“Righteousness cannot be born until self-righteousness is dead.”
Justice in War-Time (1916), p. 192
1910s
Bertrand Arthur William Russell, 3rd Earl Russell, was a British philosopher, logician, mathematician, historian, writer, essayist, social critic, political activist, and Nobel laureate. At various points in his life, Russell considered himself a liberal, a socialist and a pacifist, although he also confessed that his sceptical nature had led him to feel that he had "never been any of these things, in any profound sense." Russell was born in Monmouthshire into one of the most prominent aristocratic families in the United Kingdom.In the early 20th century, Russell led the British "revolt against idealism". He is considered one of the founders of analytic philosophy along with his predecessor Gottlob Frege, colleague G. E. Moore and protégé Ludwig Wittgenstein. He is widely held to be one of the 20th century's premier logicians. With A. N. Whitehead he wrote Principia Mathematica, an attempt to create a logical basis for mathematics, the quintessential work of classical logic. His philosophical essay "On Denoting" has been considered a "paradigm of philosophy". His work has had a considerable influence on mathematics, logic, set theory, linguistics, artificial intelligence, cognitive science, computer science and philosophy, especially the philosophy of language, epistemology and metaphysics.
Russell was a prominent anti-war activist and he championed anti-imperialism. Occasionally, he advocated preventive nuclear war, before the opportunity provided by the atomic monopoly had passed and he decided he would "welcome with enthusiasm" world government. He went to prison for his pacifism during World War I. Later, Russell concluded that war against Adolf Hitler's Nazi Germany was a necessary "lesser of two evils" and criticised Stalinist totalitarianism, attacked the involvement of the United States in the Vietnam War and was an outspoken proponent of nuclear disarmament. In 1950, Russell was awarded the Nobel Prize in Literature "in recognition of his varied and significant writings in which he champions humanitarian ideals and freedom of thought". Wikipedia

“Righteousness cannot be born until self-righteousness is dead.”
Justice in War-Time (1916), p. 192
1910s
Source: 1950s, Portraits from Memory and Other Essays (1956), p. 9
Source: 1930s, Power: A New Social Analysis (1938), Ch. 18: The Taming of Power
Source: 1910s, Mysticism and Logic and Other Essays http://archive.org/stream/mysticism00russuoft/mysticism00russuoft_djvu.txt (1918), Ch. 1: Mysticism and Logic
By the time our children are old enough to examine the evidence, our propaganda has closed their minds.
Source: 1930s, Power: A New Social Analysis (1938), Ch. 17: The Ethics of Power
Source: 1930s, In Praise of Idleness and Other Essays (1935), Ch. 1: In Praise of Idleness
Attributed to Russell in Slaby's Sixty Ways to Make Stress Work for You (1987)
Attributed from posthumous publications
“There is much pleasure to be gained from useless knowledge.”
Source: 1930s, In Praise of Idleness and Other Essays (1935), Ch. 2: 'Useless' Knowledge
1950s, The Russell-Einstein Manifesto (1955)
Speech in Birmingham, England encouraging civil disobedience in support of nuclear disarmament (15 April 1961)
1960s
An Outline of Philosophy Ch.15 The Nature of our Knowledge of Physics (1927)
1920s
1920s, The Prospects of Industrial Civilization (1923)
“There's a Bible on that shelf there. But I keep it next to Voltaire – poison and antidote.”
In Kenneth Harris Talking To: Bertrand Russell (1971)
Attributed from posthumous publications
Ch VIII: The World As It Could Be Made
1910s, Proposed Roads To Freedom (1918)
Source: 1920s, Sceptical Essays (1928), Ch. 12: Free Thought and Official Propaganda
Human Knowledge: Its Scope and Limits (1948), part II, chapter 1, p. 74
1940s
An Inquiry into Meaning and Truth (1940), Introduction, p. 15
1940s
Source: 1910s, Mysticism and Logic and Other Essays http://archive.org/stream/mysticism00russuoft/mysticism00russuoft_djvu.txt (1918), Ch. 4: The Study of Mathematics
Letter to Lord Russell of Liverpool, February 18, 1959
1950s
Source: 1910s, Our Knowledge of the External World (1914), p. 167
Dialogue between Russell and his daughter Katharine, as quoted in My Father – Bertrand Russell (1975)
Attributed from posthumous publications
Bertrand Russell, attributes this phrase to 'West German friends of peace' but adopted this slogan for the Campaign for Nuclear Disarmament he helped found http://books.google.com/books?id=c4UoX6-Sv1AC&pg=PA49 William Safire, Safire's Political Dictionary, (2008) p. 49–50 <br class="br">Misattributed
1950s, What Desires Are Politically Important? (1950)
History as an Art (1954), p. 9
1950s
Bertrand Russell book In Praise of Idleness and Other Essays
Source: 1930s, In Praise of Idleness and Other Essays (1935), Ch. 1: In Praise of Idleness, p. 13 https://books.google.com/books?id=CnlbMP_vBmgC&pg=PA13
Source: 1930s, Education and the Social Order (1932), p. 110
"Fear, the Foundation of Religion"
1920s, Why I Am Not a Christian (1927)
Source: 1910s, Our Knowledge of the External World (1914), p. 21
1900s, "The Study of Mathematics" (November 1907)
“It seems that sin is geographical.”
From this conclusion, it is only a small step to the further conclusion that the notion of "sin" is illusory, and that the cruelty habitually practised in punishing it is unnecessary.
A Fresh Look at Empiricism: 1927-42 (1996), p. 283
Attributed from posthumous publications
Bertrand Russell book Why I Am Not a Christian
What is a Christian? https://users.drew.edu/~jlenz/whynot.html (1927) <br class="br">1920s, Why I Am Not a Christian (1927)
1940s, The Bomb and Civilization http://personal.kent.edu/~rmuhamma/Philosophy/RBwritings/bombCivilization.htm (1945)
Bertrand Russell book Why I Am Not a Christian
"The Emotional Factor"
1920s, Why I Am Not a Christian (1927)
Bertrand Russell book Why I Am Not a Christian
"The Moral Problem"
1920s, Why I Am Not a Christian (1927)
Source: Introduction to 1961 edition of Sceptical Essays (1961)
It is true that this proviso is hardly necessary as regards the multiplication table, but knowledge in practical affairs has not the certainty or the precision of arithmetic. Suppose I say "democracy is a good thing": I must admit, first, that I am less sure of this than I am that two and two are four, and secondly, that "democracy" is a somewhat vague term which I cannot define precisely. We ought to say, therefore: "I am fairly certain that it is a good thing if a government has something of the characteristics that are common to the British and American Constitutions," or something of this sort. And one of the aims of education ought to be to make such a statement more effective from a platform than the usual type of political slogan.
1940s, Philosophy for Laymen (1946)