On the recipe for longevity; Collected Papers of Bertrand Russell, Vol. 29 (2012) 
1950s
                                    
Bertrand Russell: Zitate auf Englisch (seite 18)
Bertrand Russell war britischer Mathematiker und Philosoph. Zitate auf Englisch.Quelle: 1920s, Sceptical Essays (1928), Ch. 6: Machines and the Emotions
                                        
                                        Introduction, p. 10. 
1910s, Proposed Roads To Freedom (1918)
                                    
“In art [the Chinese] aim at being exquisite, and in life at being reasonable.”
                                        
                                        The Problem of China (1922), Ch. XI: Chinese and Western Civilization Contrasted 
1920s
                                    
Quelle: 1950s, Portraits from Memory and Other Essays (1956), p. 198
Quelle: 1910s, Introduction to Mathematical Philosophy (1919), Ch. 7: Rational, Real and Complex Numbers
                                        
                                        "The Regressive Method of Discovering the Premises of Mathematics" (1907), in Essays in Analysis (1973), pp. 273–274 
1900s
                                    
                                        
                                        Letter to Gilbert Murray, April 3, 1902 
1900s
                                    
“Only in thought is man a God; in action and desire we are the slaves of circumstance.”
                                        
                                        Letter to Lucy Donnely, November 25, 1902 
1900s
                                    
Quelle: 1920s, Sceptical Essays (1928), Ch. 12: Free Thought and Official Propaganda, books.google.com https://books.google.com/books?id=9tQsg5ITfHsC&pg=PA127&dq=bertrand+russell,+%22diligent+search%22, archive.org https://archive.org/stream/freethoughtoffic00russuoft/freethoughtoffic00russuoft_djvu.txt
1920s, What I Believe (1925)
1920s, What I Believe (1925)
                                        
                                        Letter to W. W. Norton, 17 February, 1931 
1930s
                                    
“I feel like that intellectual but plain-looking lady who was warmly complimented on her beauty.”
                                        
                                        In accepting his Nobel Prize, in December 1950; Russell denied that he had contributed anything in particular to literature. Quoted in LIFE, Editorials: "A great mind is still annoying and adorning our age", 26 May 1952 
1950s
                                    
Quelle: 1910s, Introduction to Mathematical Philosophy (1919), Ch. 16: Descriptions
                                        
                                        Letter to Lord Gladwyn, November 14, 1964.There is an artist imprisoned in each one of us. Let him loose to spread joy everywhere. 
1960s
                                    
                                        
                                        Fact and Fiction (1961), Part I, Ch. 6: "The Pursuit of Truth", p. 37 
1960s