34. The principles of justice are variable; the appointments of nature are invariable; therefore, the principles of justice are no appointment of nature. Aristotle.
35. Intelligence and not sex should be the standard; therefore, let the women have their way.
36. “War by killing off the men of the country gives the living a better opportunity to succeed because of reduced competition.”
37. Since you deem yourself a misfit, in the name of common sense, why do you not change your occupation?
38. The conquest of America by Europeans has been a good thing for the world; since no eminent historian doubts it.
GENERAL EXERCISES IN TESTING THE VALIDITY OF HYPOTHETICAL, DISJUNCTIVE AND DILEMMATIC ARGUMENTS.
The student must remember to give attention to the fallacies in meaning as well as to the fallacies in form.
1. If I speak at length, he is bored; if I speak briefly, he is offended; therefore I will not speak at all.
2. If virtue is involuntary, vice is also involuntary; but vice is voluntary, hence virtue is also.