★10. Th e U.S. surgeon general’s latest report on cigarettes and cancer is an interesting example of natural selection in the late twentieth century. Th e intelligent members of our species will quit smoking, and survive. The dummies will continue to puff away. Th e following enthymemes were originally submitted as letters to the editor of magazines and newspapers. Convert them into valid standard-form syllogisms. In some cases two syllogisms may be required.