These pages represent an attempt to exhibit a scientific conception of morality in a popular form, and with a view to practical applications rather than the discussion of theoretical difficulties. For this purpose it has been necessary to study brevity and avoid controversy. Hence, I have made few references to other authors, and I have almost altogether dispensed with foot-notes. But, though I have attempted to state rather than to defend my views, I believe that they are, in the main, those which, making exception for a few back eddies in the stream of modern thought, are winning their way to general acceptance among the more instructed and reflective men of our day. It is necessary that …
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