Kantianism in the context of "A priori and a posteriori"

In ethics, intrinsic value is a property of anything that is valuable on its own. Intrinsic value is in contrast to instrumental value (also known as extrinsic value), which is a property of anything that derives its value from a relation to another intrinsically valuable thing. Intrinsic value is always something that an object has "in itself" or "for its own sake", and is an intrinsic property. An object with intrinsic value may be regarded as an end, or in Kantian terminology, as an end-in-itself.

The term "intrinsic value" is used in axiology, a branch of philosophy that studies value (including both ethics and aesthetics). All major normative ethical theories identify something as being intrinsically valuable. For instance, for a virtue ethicist, eudaimonia (human flourishing, sometimes translated as "happiness") has intrinsic value, whereas things that bring you happiness (such as having a family) may be merely instrumentally valuable. Similarly, consequentialists may identify pleasure, the lack of pain, and/or the fulfillment of one's preferences as having intrinsic value, making actions that produce them merely instrumentally valuable. On the other hand, proponents of deontological ethics argue that morally right actions (those that respect moral duty to others) are always intrinsically valuable, regardless of their consequences.

Continental philosophy is a group of Western philosophies first prominent in 20th-century continental Europe that derive from a broadly Kantian tradition of focusing on the individual and society. Continental philosophy includes German idealism, phenomenology, philosophical pessimism, existentialism (and its antecedents, such as the thought of Kierkegaard and Nietzsche), hermeneutics, structuralism, post-structuralism, deconstruction, French feminism, psychoanalytic theory, posthumanism, speculative realism, and the critical theory of the Frankfurt School as well as some Freudian, Hegelian, and Western Marxist views.

There is no academic consensus on the definition of continental philosophy. Prior to the twentieth century, the term "continental" was used broadly to refer to philosophy from continental Europe. A slightly narrower use of the term originated among English-speaking philosophers since the second half of the 20th century, who use it as a convenient catch-all term to refer to a range of thinkers and traditions outside the movement known as analytic philosophy. The term continental philosophy may mark merely a family resemblance across disparate philosophical views; a similar argument has been made for analytic philosophy.

In philosophy, a noumenon (/ˈnuːmənɒn/, /ˈnaʊ-/; from Ancient Greek: νοούμενoν; pl.: noumena) is knowledge posited as an object that exists independently of human sense. The term noumenon is generally used in contrast with, or in relation to, the term phenomenon, which refers to any object of the senses. Immanuel Kant first developed the notion of the noumenon as part of his transcendental idealism, suggesting that while we know the noumenal world to exist because human sensibility is merely receptive, it is not itself sensible and must therefore remain otherwise unknowable to us. In Kantian philosophy, the noumenon is often associated with the unknowable "thing-in-itself" (German: Ding an sich). However, the nature of the relationship between the two is not made explicit in Kant's work, and remains a subject of debate among Kant scholars as a result.

Summum bonum is a Latin expression meaning the highest or ultimate good, which was introduced by the Roman philosopher Cicero to denote the fundamental principle on which some system of ethics is based—that is, the aim of actions, which, if consistently pursued, will lead to the best possible life. Since Cicero, the expression has acquired a secondary meaning as the essence or ultimate metaphysical principle of Goodness itself, or what Plato called the Form of the Good. These two meanings do not necessarily coincide. For example, Epicurean and Cyrenaic philosophers claimed that the 'good life' consistently aimed for pleasure, without suggesting that pleasure constituted the meaning or essence of Goodness outside the ethical sphere. In De finibus, Cicero explains and compares the ethical systems of several schools of Greek philosophy, including Stoicism, Epicureanism, Aristotelianism and Platonism, based on how each defines the ethical summum bonum differently.

The term was used in medieval philosophy. In the Thomist synthesis of Aristotelianism and Christianity, the highest good is usually defined as the life of the righteous and/or the life led in communion with God and according to God's precepts. In Kantianism, it was used to describe the ultimate importance, the singular and overriding end which human beings ought to pursue.

Ethical idealism, which is also referred to by terms such as moral idealism, principled idealism, and other expressions, is a philosophical framework based on holding onto specifically defined ideals in the context of facing various consequences to holding such principles and/or values. Such ideals, which are analyzed during the process of ethical thinking, become applied in practice via a group of specific goals relative to what has been learned over time about morality. As noted by philosopher Norbert Paulo, following ideals in a doctrinaire fashion will "exceed obligations" put on people such that actions "are warranted, but not strictly required."

With certain philosophical movements throughout history emphasizing various types of moral idealism, such as influences being a part of Christian ethics, Jewish ethics, and Platonist ethics, it relates to human decision making as differing alternatives get compared and contrasted. Advocates for ethical idealism, such as the philosopher Nicholas Rescher, have asserted that inherent mental concepts shared in terms of the human condition among multiple peoples have a real, tangible nature due to their influences turning logical thinking into action, particularly by stimulating peoples' sense of motivation. In contrast, skeptical philosophers, such as Richard Rorty, have argued that the complex course of recorded history has shown that "to do the right thing is largely a matter of luck" and particularly is due to "being born in a certain place and a certain time."

In philosophy, condition of possibility (German: Bedingungen der Möglichkeit) is a concept made popular by the German philosopher Immanuel Kant, and is an important part of his philosophy.

A condition of possibility is a necessary framework for the possible appearance of a given list of entities. It is often used in contrast to the unilateral causality concept, or even to the notion of interaction. For example, consider a cube made by an artisan. All cubes are three-dimensional. If an object is three-dimensional, then it is an extended object. But extension is an impossibility without space. Therefore, space is a condition of possibility because it is a necessary condition for the existence of cubes to be possible. Note, however, that space did not cause the cube, but that the artisan did, and that the cube and space are distinct entities, so space is not part of the definition of cube.