Final answer:
Feldman concludes that people are naturally honest without incentives by generalizing from his personal observations, aligning with philosophical and economic discussions on human morality and altruism.
Step-by-step explanation:
Feldman reaches the conclusion that most people are honest without receiving an incentive by studying his individual experiences and arriving at a broad generalization. This method involves observation of personal experiences which then lead to a more sweeping statement about human behavior. This approach is reflective of the philosophical discussions on morality, as seen with Hume's view on deriving 'ought' from 'is' and Adam Smith's observations on altruism in 'The Theory of Moral Sentiments'. The exploration into the nature of honesty without incentive aligns with the economic analysis that challenges the belief that individuals are purely self-interested, recognizing that altruism is a part of human nature alongside self-interest.