(25) What facts take from the force of the fifth rule? (26) What classes of words do not admit of logical definition? Illustrate. (27) Define education, teaching, instruction, training. (28) Distinguish by illustration between induction and synthesis; deduction and analysis. =14. QUESTIONS FOR ORIGINAL THOUGHT AND INVESTIGATION.= (1) Why should the _scholar_ be tempted to speak and write illogically? (2) Name the parts of speech that may be classed as predicables. (3) Explain the ten categories as given by Aristotle. (4) Show that genus and species are relative terms. (5) Why should the definition be needed most in the abstract sciences, such as theology, ethics, political economy, juris-prudence and psychology? (6) Define sin, life, wrong, personality, habit, character. (7) From the viewpoint of natural history find the species in the series of terms of which _polygon_ is a member. (8) What is the plural of differentia? (9) Why should logic insist upon the proximate genus? (10) (a) Man is a rational animal. (b) Man is a rational biped (proximate genus). In the case of the immature mind the first definition would be clearer. Why? (11) “A property of a term is any mark or characteristic which belongs to that term.” Is this definition logical? Give reasons. (12) What is the difference between the logical and the popular conception of _property_? (13) Is there any difference between the logical and popular conception of accidents? (14) “The term _conferentia_ might be used to stand for the essence of the genus, as the term differentia represents the essence of the species.”[6] Explain this. (15) John Stuart Mill affirms that there is no such thing as a real definition. Discuss this. (16) In your opinion, of the five rules of logical definition what one is violated most by the average teacher? Give reasons. (17) Distinguish between symbol and content. (18) Why are descriptive definitions best for young children? What educational principle is involved? (19) From the standpoint of the five rules for logical definition criticise the following: (1) A man is a reasonable vertebrate. (2) A gentleman is a man with no visible means of support. (3) A man is an organized entity whose cognitive powers function rationally. (4) A metal is an element with a metallic luster. (5) A triangle is a figure of three sides. (6) A teacher is one who imparts knowledge. (7) Education is the process of drawing out all that is beautiful in the body and noble in the soul. (8) A democrat is a man who believes in free trade. (9) A government is a commonwealth controlled by direct vote of the people. (20) Write the foregoing definitions in logical form.