Albert Einstein, one of the most famous physicists of all times, once concluded his life experience in the following sentence: “It is impossible to solve a problem with the same means that caused this problem.” And Max Planck, another famous physicist, concluded his experiences on changing paradigms: “A New scientific truth does not triumph by convincing the advocates of the old truth and making them see the light, but rather because its opponents eventually die out and a new generation grows up familiar with it.”  

 Speech ACRE Conference Washington 2003 (pdf)