One of Bin Laden's most infamous beliefs was that civilians, including women and children, are legitimate targets of jihad. Bin Laden was antisemitic, and had delivered warnings against alleged Jewish conspiracies: "These Jews are masters of usury and leaders in treachery. They will leave you nothing, either in this world or the next". Shia Muslims have been listed along with "Heretics... America and Israel," as the four principal "enemies of Islam" at the ideology classes of bin Laden's Al-Qaeda organization.