[-1:00.00]at the age of twenty-three and determined his life path.
[-1:-1.00]Descartes had unsuccessfully searched for certainty,
[-1:-2.00]first in the world of books,and then in the world of men.
[-1:-3.00]Then in a dream on November 10,1619,
[-1:-4.00]he made the significant discovery that he could only find certainty in his own thoughts,
[-1:-5.00]cogito ergo sum ("I think;therefore,I exist").
[-1:-6.00]This dream filled him with intense religious enthusiasm.
[-1:-7.00]Wagner's,Poincare's,and Descartes' experiences
[-1:-8.00]are representative of countless others in every field of culture.
[-1:-9.00]The unconscious is certainly the source of instinctive activity.
[-1:10.00]But in creative thought the unconscious is responsible for the production of new organized forms
[-1:11.00]from relatively disorganized elements.
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