The Principles of Ethics, Volume 1 & 2 By Spencer, Herbert Books / Hardcover Social Science › Philosophy Publisher: D. Appleton and Company, January 1910 Price $25.04 Free Shipping Send to a friend Used - Good Good condition. No Dust Jacket 2 Volume Set. Both volumes have several unopened pages. (Evolutionary ethics, philosophy) NOT AVAILABLE FOR SHIPMENT OUTSIDE OF THE UNITED STATES. $25.04 1 in Stock at Warehouse Quantity Add Free Shipping to continental U.S. OR $1.00 per item discount if shipped to store.