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Eccles和Popper的交往看得我很燃，Eccles写道：
I learned from Popper what for me is the essence of scientific investigation -- how to be speculative and imaginative in the creation of hypotheses, and then to challenge them with the utmost rigor, both by utilizing all existing knowledge and by mounting the most searching experimental attacks. In fact I learned from him even to rejoice in the refutation of a cherished hypothesis, because that, too, is a scientific achievement and because much has been learned by the refutation.
Through my association with Popper I experienced a great liberation in escaping from the rigid conventions that are generally held with respect to scientific research ... When one is liberated from these restrictive dogmas, scientific investigation becomes an exciting adventure opening up new visions; and this attitude has, I think, been reflected in my own scientific life since that time.