“We cannot solve our problems with the same thinking we used when we created them.”

Source: The Road Less Traveled: A New Psychology of Love, Traditional Values, and Spiritual Growth

Said in a Fox Business interview https://www.facebook.com/FoxBusiness/posts/weve-been-conditioned-to-think-that-only-politicians-can-solve-our-problems-but-/10153892947535238/ (February 9, 2016)

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.

A Declaration of the Independence of Cyberspace (1996)
Context: You claim there are problems among us that you need to solve. You use this claim as an excuse to invade our precincts. Many of these problems don't exist. Where there are real conflicts, where there are wrongs, we will identify them and address them by our means. We are forming our own Social Contract. This governance will arise according to the conditions of our world, not yours. Our world is different.
Cyberspace consists of transactions, relationships, and thought itself, arrayed like a standing wave in the web of our communications. Ours is a world that is both everywhere and nowhere, but it is not where bodies live.
We are creating a world that all may enter without privilege or prejudice accorded by race, economic power, military force, or station of birth.
We are creating a world where anyone, anywhere may express his or her beliefs, no matter how singular, without fear of being coerced into silence or conformity.
Your legal concepts of property, expression, identity, movement, and context do not apply to us. They are all based on matter, and there is no matter here.

2016, Remarks to the People of Cuba (March 2016)
Context: There’s still enormous problems in our society. But democracy is the way that we solve them. That's how we got health care for more of our people. That's how we made enormous gains in women’s rights and gay rights. That's how we address the inequality that concentrates so much wealth at the top of our society. Because workers can organize and ordinary people have a voice, American democracy has given our people the opportunity to pursue their dreams and enjoy a high standard of living.

1900s, The Strenuous Life: Essays and Addresses (1900), The Strenuous Life

The Only Solution
Grooks