172. How do the ideas of reality and of unreality originate in the child?
173. Why are we more inclined to apply the concept of reality than that of unreality?
174. What is the double influence of experience on the child’s belief?
175. Should authoritative belief be eradicated? Give reasons for your answer.
176. Should practical belief be eradicated? Give reasons for your answer.
177. What is a superstition?
178. Why do we believe the Copernican theory and reject the Ptolemaic theory?