Idealism in philosophy, also known as philosophical idealism or metaphysical idealism, is the set of metaphysical perspectives asserting that, most fundamentally, reality is equivalent to mind, spirit, or consciousness; that reality is entirely a mental construct; or that ideas are the highest form of reality or have the greatest claim to being considered "real". The radical latter view is often first credited to the Ancient Greek philosopher Plato as part of a theory now known as Platonic idealism. Besides in Western philosophy, idealism also appears in some Indian philosophy, namely in Vedanta, one of the orthodox schools of Hindu philosophy, and in some streams of Buddhism.
Monism attributes oneness or singleness to a concept, such as to existence. Various kinds of monism can be distinguished:
Materialism is a form of philosophical monism which holds that matter is the fundamental substance in nature, and that all things, including mental states and consciousness, are results of material interactions of material things. According to philosophical materialism, mind and consciousness are by-products or epiphenomena of material processes, without which they cannot exist. Materialism directly contrasts with idealism, according to which consciousness is the fundamental substance of nature.
Religious pluralism is an attitude or policy regarding the diversity of religious belief systems co-existing in society. It can indicate one or more of the following:
The world is the totality of entities, the whole of reality, or everything that is. The nature of the world has been conceptualized differently in different fields. Some conceptions see the world as unique while others talk of a "plurality of worlds". Some treat the world as one simple object while others analyze the world as a complex made up of parts. In scientific cosmology, the world or universe is commonly defined as "[t]he totality of all space and time; all that is, has been, and will be". Theories of modality talk of possible worlds as complete and consistent ways how things could have been. Phenomenology, starting from the horizon of co-given objects present in the periphery of every experience, defines the world as the biggest horizon or the "horizon of all horizons". In philosophy of mind, the world is contrasted with the mind as that which is represented by the mind. Theology conceptualizes the world in relation to God, for example, as God's creation, as identical to God or as the two being interdependent. In religions, there is a tendency to downgrade the material or sensory world in favor of a spiritual world to be sought through religious practice. A comprehensive representation of the world and our place in it, as is found in religions, is known as a worldview. Cosmogony is the field that studies the origin or creation of the world while eschatology refers to the science or doctrine of the last things or of the end of the world.
Consensus reality refers to the generally agreed-upon version of reality within a community or society, shaped by shared experiences and understandings. This understanding arises from the inherent differences in individual perspectives or subjectivities relating to knowledge or ontology, leading to uncertainties about what is real. While various viewpoints exist, people strive to establish a consensus, serving as a pragmatic guide for social norms. The term carries both positive and negative connotations, as it is viewed critically by anti-realist theorists but recognized for its practical benefits in fostering shared beliefs. Consensus reality differs from consensual reality, with the former representing mutual agreement about what is true. Artists and thinkers have challenged consensus reality, aiming to disrupt established norms and question the authenticity of the world's reality.
Solipsism is the philosophical idea that only one's mind is sure to exist. As an epistemological position, solipsism holds that knowledge of anything outside one's own mind is unsure; the external world and other minds cannot be known and might not exist outside the mind.
German idealism is a philosophical movement that emerged in Germany in the late 18th and early 19th centuries. It developed out of the work of Immanuel Kant in the 1780s and 1790s, and was closely linked both with Romanticism and the revolutionary politics of the Enlightenment.
Subjective idealism, or empirical idealism, is a form of philosophical monism that holds that only minds and mental contents exist. It entails and is generally identified or associated with immaterialism, the doctrine that material things do not exist. Subjective idealism rejects dualism, neutral monism, and materialism; it is the contrary of eliminative materialism, the doctrine that all or some classes of mental phenomena do not exist, but are sheer illusions.
Mental substance, according to the idea held by dualists and idealists, is a non-physical substance of which minds are composed. This substance is often referred to as consciousness.
In metaphysics and philosophy of language, the correspondence theory of truth states that the truth or falsity of a statement is determined only by how it relates to the world and whether it accurately describes that world.
Giovanni Gentile was an Italian philosopher, educator, and politician. Described by himself and by Benito Mussolini as the "philosopher of fascism", he was influential in providing an intellectual foundation for Italian fascism, and ghostwrote part of "The Doctrine of Fascism" (1932) with Mussolini. He was involved in the resurgence of Hegelian idealism in Italian philosophy and also devised his own system of thought, which he called "actual idealism" or "actualism", which has been described as "the subjective extreme of the idealist tradition".
In ethics, value pluralism is the idea that there are several values which may be equally correct and fundamental, and yet in conflict with each other. In addition, value-pluralism postulates that in many cases, such incompatible values may be incommensurable, in the sense that there is no objective ordering of them in terms of importance. Value pluralism is opposed to value monism, which states that all other forms of value can be commensured with or reduced to a single form.
John Boswell Cobb, Jr. is an American theologian, philosopher, and environmentalist. Cobb is often regarded as the preeminent scholar in the field of process philosophy and process theology, the school of thought associated with the philosophy of Alfred North Whitehead. Cobb is the author of more than fifty books. In 2014, Cobb was elected to the prestigious American Academy of Arts and Sciences.
Idealism in the foreign policy context holds that a nation-state should make its internal political philosophy the goal of its conduct and rhetoric in international affairs. For example, an idealist might believe that ending poverty at home should be coupled with tackling poverty abroad. Both within and outside of the United States, American president Woodrow Wilson is widely considered an early advocate of idealism and codifier of its practical meaning; specific actions cited include the issuing of the famous "Fourteen Points".
Cosmic pluralism, the plurality of worlds, or simply pluralism, describes the belief in numerous "worlds" in addition to Earth, which may harbour extraterrestrial life.
Participatory theory is a vision or conceptual framework that attempts to bridge the subject–object distinction. According to Jorge Ferrer, "the kernel of this participatory vision is a turn from intra-subjective experiences to participatory events in our understanding of transpersonal and spiritual phenomena."
Pluralism in general denotes a diversity of views or stands, rather than a single approach or method.
John McTaggart Ellis McTaggart was an English idealist metaphysician. For most of his life McTaggart was a fellow and lecturer in philosophy at Trinity College, Cambridge. He was an exponent of the philosophy of Georg Wilhelm Friedrich Hegel and among the most notable of the British idealists. McTaggart is known for "The Unreality of Time" (1908), in which he argues that time is unreal. The work has been widely discussed through the 20th century and into the 21st.
Buddhist thought and Western philosophy include several parallels.
