" It is not a man's duty, as a matter of course, to devote himself to the eradication of any, even to most enormous wrong; he may still properly have other concerns to engage him; but it is his duty, at least, to wash his hands of it, and, if he gives it no thought longer, not to give it practically his support. "

― Henry David Thoreau , Walden / Civil Disobedience / And Other Writings