BSEH SS Philosophy study materials
BSEH SS Philosophy study resources

BSEH SS Philosophy key terms

BSEH SS Philosophy · Get comfortable with the vocabulary.

Philosophy

Systematic inquiry into fundamental questions about existence, knowledge, value, reason, and mind, conducted through reasoned argument rather than tradition, authority, or unexamined opinion.

Related: Metaphysics, Epistemology, Logic
Critical thinking

Disciplined practice of evaluating claims and arguments by inspecting evidence, assumptions, and inferential structure before accepting, rejecting, or acting on them.

Related: Logic, Deductive validity
Metaphysics

Branch of philosophy investigating what ultimately exists and what reality is like, including substance, causation, identity, time, mind, and universals.

Related: Epistemology, Platonic Forms
Epistemology

Branch of philosophy studying knowledge, belief, justification, and truth; it asks what can be known, how knowledge is acquired, and where cognition's limits lie.

Related: Skepticism, Empiricism, Rationalism
Logic

Study of valid inference and argument form, distinguishing reasoning in which premises guarantee or support a conclusion from reasoning that fails to do so.

Related: Deductive validity, Critical thinking
Aesthetics

Branch of philosophy concerned with beauty, art, aesthetic experience, and the standards by which artworks, taste, and aesthetic judgments are evaluated.

Related: Ethics, Philosophy
Deductive validity

Property of an argument in which, if the premises are true, the conclusion cannot be false, purely because of the argument's logical form.

Related: Logic, Critical thinking
Skepticism

Philosophical stance that doubts or suspends judgment about knowledge claims, often because justification seems insufficient or because opposing arguments appear equally strong.

Related: Epistemology, Cartesian doubt
Brahman

In Advaita and related Vedantic thought, the ultimate non-dual reality underlying self and world, described as infinite being, consciousness, and bliss.

Related: Atman, Advaita Vedanta, Maya
Atman

The innermost self or witness consciousness in Indian philosophy; Advaita identifies it with Brahman, while other schools treat it as a distinct, enduring entity.

Related: Brahman, Advaita Vedanta
Advaita Vedanta

Non-dualist Vedantic school holding that Brahman alone is ultimately real and that the apparent plurality of selves and world arises from ignorance.

Related: Brahman, Maya, Atman
Maya

In Advaita, the beginningless power of ignorance that projects apparent multiplicity onto non-dual Brahman; it is not ordinary illusion in every practical sense.

Related: Advaita Vedanta, Brahman
Samsara

The ongoing cyclical round of birth, death, and rebirth driven by karma and ignorance, from which Indian traditions seek liberation.

Related: Karma, Moksha
Karma

Principle that intentional action leaves traces shaping future experience and rebirth; in Indian thought it is causal moral conditioning, not simply fate.

Related: Samsara, Moksha
Moksha

Liberation from samsara and suffering, understood variously as union with Brahman, isolation of pure self, or extinction of defilements, depending on the school.

Related: Samsara, Karma, Advaita Vedanta
Anatta

Buddhist doctrine that persons lack a permanent, unchanging self; what we call 'I' is a stream of conditioned physical and mental events.

Related: Samsara, Karma
Empiricism

View that sensory experience and observation are the primary or sole source of substantive knowledge, typically denying that innate ideas supply content.

Related: Rationalism, Epistemology
Rationalism

View that reason, independent of sense experience, can yield major truths about reality, including substantive innate or a priori knowledge.

Related: Empiricism, A priori
A priori

Knowledge or justification whose warrant does not depend on any particular experience, such as basic logical truths or mathematical statements.

Related: Rationalism, Empiricism
Platonic Forms

In Plato's theory, timeless, non-physical paradigms that particular things imitate or participate in, and which ground genuine knowledge as opposed to opinion.

Related: Metaphysics, Rationalism
Cartesian doubt

Method of radical doubt used by Descartes, suspending all beliefs that can be doubted in order to find an indubitable foundation for knowledge.

Related: Skepticism, Epistemology
Ethics

Branch of philosophy examining moral rightness, obligation, virtue, and value, and the principles by which conduct and character are judged.

Related: Virtue ethics, Deontology, Utilitarianism
Virtue ethics

Approach centering character and flourishing: it asks what kind of person to be and which habits constitute excellence, rather than judging only individual acts.

Related: Ethics, Deontology
Utilitarianism

Consequentialist theory evaluating actions by their tendency to maximize overall welfare or utility, often understood as pleasure, happiness, or preference satisfaction.

Related: Deontology, Ethics
Deontology

Ethics grounding rightness in duty, rules, or respect for persons rather than consequences; Kant's categorical imperative is the classic formulation.

Related: Categorical imperative, Utilitarianism
Categorical imperative

Kant's supreme moral principle: act only on maxims you could will as universal law, and treat humanity always as an end, never merely as a means.

Related: Deontology, Ethics
Ontological argument

A priori argument inferring God's existence from the concept of a greatest conceivable being, which must possess existence in order to be greatest.

Related: Cosmological argument, Problem of evil
Cosmological argument

Family of arguments inferring a first cause or necessary being from the existence and contingency of the changing contingent world.

Related: Ontological argument, Theodicy
Problem of evil

Difficulty of reconciling an omnipotent, omniscient, wholly good God with the reality of suffering, especially suffering that appears pointless or excessive.

Related: Theodicy, Cosmological argument
Theodicy

Attempt to justify belief in God despite evil by explaining how God may have morally sufficient reasons for permitting suffering.

Related: Problem of evil
Social contract

Theory that political authority derives from an actual or hypothetical agreement among people to secure order, rights, or the common good.

Related: Justice, Veil of ignorance
Justice

Principle governing fair distribution of benefits, burdens, and power, and the fitting treatment of persons according to desert, need, or equality.

Related: Social contract, Veil of ignorance
Veil of ignorance

Rawlsian device for choosing fair principles: decide as if ignorant of your own talents, status, and conception of the good.

Related: Justice, Social contract
Swaraj

Self-rule, used by Gandhi and other Indian thinkers for national political independence and also for individual self-mastery and moral autonomy.

Related: Satyagraha, Ahimsa
Satyagraha

Gandhi's method of nonviolent resistance through truth-force: active refusal to cooperate with injustice while enduring suffering without hatred.

Related: Ahimsa, Swaraj
Ahimsa

Principle of non-harm or nonviolence in thought, word, and deed, central to Jainism, Buddhism, and Gandhi's political ethics.

Related: Satyagraha, Swaraj
Navayana

B. R. Ambedkar's reinterpretation of Buddhism emphasizes reason, equality, and social justice while rejecting caste hierarchy, supernatural dogma, and otherworldly passivity.

Related: Ahimsa, Justice
Applied ethics

Branch applying moral theory to concrete dilemmas in medicine, environment, technology, business, and law, often through case-based reasoning.

Related: Ethics, Bioethics, Environmental ethics
Bioethics

Study of moral issues in medicine and life sciences, including informed consent, euthanasia, genetic engineering, and allocation of scarce resources.

Related: Applied ethics, Environmental ethics
Environmental ethics

Inquiry into moral relations between humans and nature, including the value of nonhuman life and duties regarding climate, ecosystems, and future generations.

Related: Applied ethics, Bioethics