Conscience the best policy. A fast-day sermon, preached on April 6, 1848 This book, "Conscience the best policy. A fast-day sermon, preached on April 6, 1848", by John Weiss, is a replication of a book originally published before 1848. It has been restored by human beings, page by page, so that you may enjoy it in a form as close to the original as possible. This book was created using print-on-demand technology. Thank you for supporting classic literature.