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Examines the problem of correlating the “question” and the “answer” in modern science.

The literature of our day shows experimental scientists to be divided between two schools of thought, now generally called Mechanist and Vitalist. The literature of any day these last 2000 years would tell the same tale, but for occasional changes of name. Where an issue dividing scientists is seen to be an experimental issue, it presents no challenge to the philosopher. His interest is limited to the question, How shall we find out? and where all are agreed as to the (...) way of settling a difference of opinion, he can wait with patience to learn the result. But the very history of this world-old and world-wide conflict between schools of experimental science shows that it never has been, is not now, could never become one whose issue turned on the outcome of this or that experiment; nor in all the 2000 years the conflict has lasted, has science been able to come upon any other type of evidence by which the issue might be settled. As one of a class of similar issues, ancient, pervasive, persistent, the manner of whose decision lies still beyond the grasp of experimental science, this Mechanist-Vitalist controversy gives the philosopher much to think about. (shrink)

During the course of the last century it has grown increasingly clear that not all the issues with which an experimental science can be faced are experimental issues. If there were no other ground for this belief, history itself would force upon us some such conviction. For there are differences of opinion dividing men today that have divided men from the earliest times recorded, and in every one of the ages in between the self-same issue will have involved in dissension, (...) not an occasional disputant here and there, but all the best thinkers in all the known sciences of their day. Yet at no time has either party to such strifes been in possession of facts ignored by the other; for had this been the case, the ignorant party must ere now have been driven from the field by force of the facts it ignored. It is fair to suppose that an issue which has come no nearer to solution as century after century added its contribution to the store of human knowledge, cannot depend for its decision on any information to be looked for from the centuries to come. (shrink)

And yet when after the lapse of four maturing decades we recall certain passages of this Essay, how can we exonerate Clifford from backsliding Can we even urge ...

Giordano Bruno, 1548-1600.- Benedict de Spinoza, 1632-1677.- A disciple of Spinoza (an illustration) - David Hume, 1711-1776.- Immanuel Kant, 1724-1804.- Arthur Schopenhauer, 1788-1860.- Friederich [!] Nietzsche, 1844-1900.- Pragmatism.- Progress.- Royce on love and loyalty.- Retrospect and prospect.

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