The most important thing is that it be a solid and flexible principle system, capable of creating attitudes that are consistent and even heroic, open to new problems. It must be a system having as its focus the molding of the conscience through interaction and dialogue. In the social field, there must be clear rules establishing a grading of the possible goods. These rules should be capable of discerning what is perfect, good, desirable, possible, tolerable on the one hand, and what is to be repudiated and punished on the other. This is essential even when different ethical conceptions are involved.
Justice is of a dimensional value that establishes equivalence and proportionality among behaviors.
If a fair society existed, it would be easier for individuals to obtain happiness. However, a reasonable level of justice, that which can be demanded from society, is one thing, and the possibility of happiness for every individual is quite another. The error of the totalitarian ideologies is that they confuse justice, happiness and politics. But at the same time, the idea that institutional well functioning is enough for democratic development to take place has been proven wrong. The education of law students must depart from the context of the problems that have been pointed out here.