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Freeman Dyson

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The progress of science requires the growth of understanding in both directions, downward from the whole to the parts and upward from the parts to the whole. A reductionist philosophy, arbitrarily proclaiming that the growth of understanding must go only in one direction, makes no scientific sense. Indeed, dogmatic philosophical beliefs of any kind have no place in science.
--
"The Scientist as Rebel" in New York Review of Books (25 May 1995)

 
Freeman Dyson

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Windelband, the historian of philosophy, in his essay on the meaning of philosophy (Was ist Philosophie? in the first volume of his Präludien) tells us that "the history of the word 'philosophy' is the history of the cultural significance of science." He continues: "When scientific thought attains an independent existence as a desire for knowledge, it takes the name of philosophy; when subsequently knowledge as a whole divides into its various branches, philosophy is the general knowledge of the world that embraces all other knowledge. As soon as scientific thought stoops again to becoming a means to ethics or religious contemplation, philosophy is transformed into an art of life or into a formulation of religious beliefs. And when afterwards the scientific life regains its liberty, philosophy acquires once again its character as an independent knowledge of the world, and in so far as it abandons the attempt to solve this problem, it is changed into a theory of knowledge itself." Here you have a brief recapitulation of the history of philosophy from Thales to Kant, including the medieval scholasticism upon which it endeavored to establish religious beliefs. But has philosophy no other office to perform, and may not its office be to reflect upon the tragic sense of life itself, such as we have been studying it, to formulate this conflict between reason and faith, between science and religion, and deliberately to perpetuate this conflict?

 
Miguel de Unamuno
 

The impact of Sperry's philosophy, similar to that of his scientific discoveries previously, has now transcended the boundaries of science and reaches into human awareness worldwide. Dr. Robert Muller, former Assistant Secretary General of the United Nations, for instance, is deeply impressed by, and actively promotes, Sperry's work — He fully recognizes the significance of the neuroscientist's theory of emergence and downward causation, which transcends dualism and reductionism, leads in an unbroken continuum from atoms to subjective experience, and describes each newly emergent phenomenon in the universe as an entity in its own right with laws and properties that never before existed. Such new emergents (which disappear in reductionist thinking) affect everything else on earth, including the elements that created them (downward causation) but most importantly the future quality of evolution. Values, thus — as emergents of brain function — are recognized as the most powerful determinants on earth, even in the world of science.

 
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