Werther wrote:While ethics is set of moral principles which tend to suggest aspects of universal fairness and the question of whether or not an action is responsible, yet what can it be considered as being ethical or not?
I' m not sure if I understand your question, Werther. Could you re-word it differently, please?
Werther wrote:By duty, if it means to save someone from drowning and you fail, then your action is considered good and the consequences for your failure is irrelevant.
I don't think that the consequences of your actions are irrelevant, quite the opposite. Of course, if you tried to save the drowning person you probably did the right thing even if the person eventually died. But suppose for a second that that one person was Hitler. Would the right thing to do have been different?
Werther wrote:In order to determine the value of your moral action, you must observe the person's will which followed the action. And good being expressed through the duty of action, Kant naming this phenomenon as Categorical Imperative, a self-law, a command or conscience which dictates and when we act from duty, we proceed in the correct manner based on the self-respect, as rational and law-giving beings
Kant thought that there was a moral law that we could discover through reason. That is, a universal maxim that applies to everybody in every circumstance. What he proposed was “you should act so that the maxim of your action can be a universal law” - what you called the categorical imperative.
So for example, we think that lying is wrong and we say something like 'you should never lie'. One possible problem though, is that if I say something like that I could easily find a situation where 'lying' is the right thing to do. Suppose there's a psychopath who wants to kill an innocent family. The family asks you for help and you hide them in you house. Now the psychopath comes and asks you where the family is. What are you going to do?
Now, of course you can try to make the maxim more workable, but the question is, how specific are you going to make it? You could even try to make a maxim that describes yourself up to the last detail and says that you are allowed to steal if you want. That would be another problem.
What I think is valuable here, is the idea that ethics should be universal. But, by that I mean something slightly different: I mean that we can't tailor moral maxims for ourselves, we should take everyone's interests into consideration. In other words, it should not be arbitrary. We cannot say ' we can kill animals because they are not humans' without trying to explain what's so special about being a human being.
Werther wrote:Mill, on the other hand, considers happiness and not rationality is the basis of morality and through happiness means pleasure and lack of pain,
What do you mean by 'not rationality''?
Werther wrote:
but what if both theories are just delusions, only a sophisticated method to assert preferences, everything is relative and the idea of evil is just an indifference towards good?
Hehe you could try to prove it. There has recently been a debate with a guy who thought that objective reality doesn't exist. You may want to take a look at it.