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On Sense and the Sensible
ISBN13: 9781419138577
ISBN: 141913857X
List Price: $15.95
Publisher: Kessinger Publishing

But there are, besides these, certain other attributes, of which some are common to all living things, while others are peculiar to certain species of animals. The most important of these may be summed up in four pairs, viz. waking and sleeping, youth and old age, inhalation and exhalation, life and death. We must endeavour to arrive at a scientific conception of these, determining their respective natures, and the causes of their occurrence.