Aristotle is simply saying that we should not let pleasure dictate all the decisions we make, this is a practice of moderation and self-control. It may seem that animals are experiencing happiness but in reality they are experiencing pleasure, also animals cannot get used to being good, as it is not natural. According to Aristotle the habit of being good must be practiced over a period of time until it becomes natural (Nicomachean Ethics p.71). Aristotle believes that happiness for humans must be something completely unique to humans. A unique characteristic of human beings is to be reasonable, so to be reasonable is to be happy. Although humans are hardwired to appreciate pleasure and the temptation to indulge in pleasure is almost always present, we must learn that moderation of pleasure is what we really need. For Aristotle, the purpose of human life is to be free from pleasure and to act as responsible individuals. Everyone has their own version of extremes, for example some people are more likely to show courage than others. Aristotle understood this and even stated on page 111 that “this is not in everyone's power and is not easy; so doing these things well is rare, praiseworthy and noble. The average is determined by the feedback of others, so the average is different for everyone