Caveat emptor effect that the initial transfer or license of intellectual-property rights is preserved. Most stores require proof of purchase and impose time limits on exchanges or refunds. Some larger chain stores, such as F.Y.E., Staples, Target, or Walmart, will, however, do exchanges or refunds at any time, with or without proof of purchase, although they usually require a form of picture identification and place per-transaction and/or per-person quantity or dollar limitations on such returns. In the UK, consumer law has moved away from the "caveat emptor" model, with laws passed that have enhanced consumer rights and allow greater leeway to return
Doctrine of the Mean contrary to the course of the Mean." This guideline requires self-education, self-questioning and self-discipline during the process of self-cultivation. This principle was demonstrated in the first chapter of "Doctrine of the Mean": "The superior man does not wait till he sees things to be cautious, nor till he hears things to be apprehensive. There is nothing more visible than what is secret, and nothing more manifest than what is minute. Therefore the superior man is watchful over himself, when he is alone." This guideline requires understanding, concern and tolerance towards one another. Leniency was demonstrated in the 13th chapter: "When