A good description of ordinary,everyday science,the kind that most scientist spend their lives doing fails to describe the really important scientific discoveries,the ones that transform our conception of the universe. Ordinary science may be orderly and logical,but the great bursts of scientific creativity − the ones that change our ideas about reality − typically lack these these qualities. Scientific discovery is as illogical and unpredictable as creative activity in the arts. The creators of great new scientific insight depend as much on intuition and unspoken feeling as any creative artist. Moreover,they often encounter resistance by society to their revolutionary ideas. Only through stubborn persistence and strong belief in the correctness of their vision are such original thinkers able to make their ideas widely known. As the examples of Darwin and Einstein suggest, scientific discovery is't just a matter of logic and evidence, but often involves creative intuition and stubborn belief in the truth of one's ideas.