Answer and Explanation:
The caution that must be used to deal with the situation presented in the question above is prudence. As we know, Aristoteles was the first philosopher to treat ethics as a science. For him, the happiness of human beings was totally related to the experience of an ethical life and an ethical life is one that presents prudence as the basic virtue for all situations. Thus, we can say that the student presented in the text above, will only feel happy if he acts prudently, doing what is correct and avoiding plagiarism in his work. This will keep the student happy and with a clear conscience, because he knows that he acted correctly, regardless of the result that this promotes. If the student acts recklessly and commits plagiarism, even if he passes the course, he will not be happy. The unhappiness will happen because the student will have a heavy conscience and fear of being discovered and expelled from the course.