“We cannot solve our problems with the same thinking we used when we created them.”
“We cannot solve the problems using the same kind of thinking we used when we created them”
            "Einstein's famous saying in Copenhagen", as quoted in a FBIS  Daily Report https://books.google.de/books?id=DfQTAQAAMAAJ&q=%22We+cannot+solve%22: East Europe (4 April 1995), p. 45 
Disputed
        
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Albert Einstein 702
German-born physicist and founder of the theory of relativi… 1879–1955Related quotes
“We cannot solve life's problems except by solving them.”
Source: The Road Less Traveled: A New Psychology of Love, Traditional Values, and Spiritual Growth
“If knowledge can create problems, it is not through ignorance that we can solve them.”
Stopped in Our Tracks, Book Two: Excerpts from U.G.'s Dialogues (2005) by K. Chandrasekhar
“Given that we cannot know all the elements in a problem, we never can solve it.”
                                        
                                        Ibid., p. 282 
The Book of Disquiet 
Original: Como nunca podemos conhecer todos os elementos de uma questão, nunca a podemos resolver.
                                    
                                        
                                        Stating that he was considering a run as an Independent for US Senate after Olympia Snowe's surprise announcement that she would be retiring from it, as quoted in  "Olympia Snowe Retirement Causes Maine Scramble" in the Associated Press (29 February 2012) http://www.huffingtonpost.com/2012/02/29/olympia-snowe-retirement-maine_n_1310524.html 
Context: I'm giving it some thought for the very reason that Olympia quit. It's just not working down there and maybe we need to try something different. … We have serious problems in this country but we can't begin to solve them until we solve this shrill deadlock.
                                    
                                        
                                         December 2007 http://www.startribune.com/nation/12598281.html, in an interview Sunday on ABC's This Week. Greenspan suggested the government should boost support to homeowners facing the prospect of losing their homes because their mortgages are resetting to higher interest rates. 
2000s