... reluctance or pain. As a consequence of the above consideration the candidate for Longevity at the commencement of his career must begin to eschew his physical desires, not from any sentimental theory of right or wrong, but for the following good reason. As, according to a well-known and now established scientific theory, his visible material frame is always renewing its particles; he will, while abstaining from the gratification of his desires, reach the end of a certain period during which those particles which composed the man of vice, and which were given a bad predisposition, will have ... — Five Years Of Theosophy • Various
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