Henry Melvill (1798–1871) British academic
"Partaking in Other Men's Sins", an address at St. Margaret's Church, Lothbury, England (12 June 1855), printed in Golden Lectures (1855); eventually part of this statement become paraphrased in several slight variations, and has usually been misattributed to Herman Melville, i.e.: "We cannot live only for ourselves. A thousand fibers connect us with our fellow men; and along these fibers, as sympathetic threads, our actions run as causes, and they come back to us as effects".
Context: There is not one of you whose actions do not operate on the actions of others — operate, we mean, in the way of example. He would be insignificant who could only destroy his own soul; but you are all, alas! of importance enough to help also to destroy the souls of others.... Ye cannot live for yourselves; a thousand fibres connect you with your fellow-men, and along those fibres, as along sympathetic threads, run your actions as causes, and return to you as effects.