The nature of scientific reserch requires the discovery of something that is new in itself. If it were possible to prescribe what answers scientific problems should have, they would not be genuine, for the essence of the matter would be in advance.
This is quite a curious situation to me, Taka, and I think you have a good case for confusion. I immediately thought 'they' referred to 'answers'. But on closer inspection of the logic, I thought this: According to the quoted sentence-- The essence of scientific research is discovery.
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(If I were proofreading it, I'd query the truth of the first sentence, an
The nature of scientific research requires the discovery of something that is new in itself. If it were possible to prescribe what answers scientific problems should have, they would not be genuine problems, for the essence of the matter would be in advance.