Kantian ethicsKantian ethics refers to a deontological ethical theory developed by German philosopher Immanuel Kant that is based on the notion that: "It is impossible to think of anything at all in the world, or indeed even beyond it, that could be considered good without limitation except a good will." The theory was developed in the context of Enlightenment rationalism. It states that an action can only be moral if (i) it is motivated by a sense of duty and (ii) its maxim may be rationally willed a universal, objective law.
Two-level utilitarianismTwo-level utilitarianism is a utilitarian theory of ethics developed by R. M. Hare. According to the theory, a person's moral decisions should be based on a set of moral rules, except in certain rare situations where it is more appropriate to engage in a 'critical' level of moral reasoning. Consequentialists believe that an action is right if it produces the best possible state of affairs. Traditional utilitarianism (act utilitarianism) treats this as a claim that people should try to ensure that their actions maximize overall happiness or pleasure.
Instrumental and intrinsic valueIn moral philosophy, instrumental and intrinsic value are the distinction between what is a means to an end and what is as an end in itself. Things are deemed to have instrumental value if they help one achieve a particular end; intrinsic values, by contrast, are understood to be desirable in and of themselves. A tool or appliance, such as a hammer or washing machine, has instrumental value because it helps you pound in a nail or clean your clothes.
Situational ethicsSituational ethics or situation ethics takes into account only the particular context of an act when evaluating it ethically, rather than judging it only according to absolute moral standards. With the intent to have a fair basis for judgments or action, one looks to personal ideals of what is appropriate to guide them, rather than an unchanging universal code of conduct, such as Biblical law under divine command theory or the Kantian categorical imperative.
