Explanation
Justification is a reason-giving account intended to show a claim, decision, or action to be warranted or defensible against a relevant standard and possible objection. It differs from causal explanation: explaining why someone acted does not yet show that the action was right. What counts as a reason depends on the domain—empirical evidence, legal norm, moral consideration, and institutional procedure are not interchangeable. Justification is also addressed to others and must be capable of answering doubt and those affected. The conceptual movement proceeds from a contested position through disclosed reasons and standards to counter-examination, and finally to defeasible acceptance or reasoned rejection.
Movement of thought
1. A claim, decision, or action is challenged and thereby made answerable to a relevant standard. 2. The responsible party discloses reasons, evidence, rules, and the claimed connection between them and the position. 3. Objections test truth, relevance, consistency, acceptability, and the voices of those affected by the decision. 4. Alternative reasons or counterexamples show whether the account merely explains, rationalises after the fact, or genuinely supports. 5. The position returns as provisionally justified, in need of revision, or rejected, while responsibility remains attributable.
Scientific use case
Argumentation theory reconstructs reasons and objections; legal and moral philosophy distinguish standards of validity; philosophy of science studies evidential justification. Discourse analysis asks who is entitled to demand reasons.
Example
A research team justifies excluding a dataset by published quality criteria, displays the measurement errors, and checks whether the same rule also excludes inconvenient counterevidence.
Counterexample
“I did it from fear” may causally explain an action without justifying it. The authority of a person likewise does not replace a reason that can be examined under the relevant standard.
Distinction
Distinguish justification from explanation, excuse, proof, evidence, and dicaeologia. Evidence may supply a reason; dicaeologia is a rhetorical figure of self-justification. Justification names the broader normative or epistemic process.
Effect on thought and perception
Justification makes decisions examinable and may enable legitimate agreement. As post-hoc rationalisation it can conceal power and merely provide rhetorical protection for a predetermined outcome.
Resonance
An action is overtaken by a question: why was it entitled to occur? Justification begins when the answer exposes its path to a standard and withstands objection.
Etymology
Technical core term; individual etymological review pending
Provenance
ATLAS 241 residual-case triage → profile candidate 241-C → source and neighbourhood cross-check → ATLAS 244
Cite this entry
Reich, Michael (Hrsg./ed.): „Justification“. Atlas der Sprache, AT-CORE-244-003. ATLAS 260, data model 1.6.0. https://atlasoflanguage.com/concept/AT-CORE-244-003The address remains stable; editorial content may evolve. Editorial reading state: 2026-10-15. Include your access date for precise references.
Historical background
Locke separates holding a true opinion from holding it on appropriate grounds. A person may happen to be right while believing for reasons that do not warrant the belief. His insistence that assent should follow the available grounds of probability thus concerns the route to a judgement, not only its eventual correctness. This is a historical conceptual witness for epistemic justification; it does not establish the first specialised use of the English noun. The discussion is also situated within Locke’s theological understanding of responsibility, which must remain visible rather than being silently converted into a wholly secular contemporary theory. For the Atlas, the distinction is useful whenever a fortunate outcome is offered as proof that the reasoning was sound. Conversely, responsible reasoning under uncertainty does not guarantee that every conclusion will prove true. The wider history of justification in legal and religious settings, and later epistemological disputes, needs sources beyond the selected argument.
How conceptual history changes the analysis
Epistemic justification concerns the adequacy of reasons for a judgement; accidental truth and retrospective defence do not suffice.
References for the historical section
- John Locke, An Essay Concerning Human Understanding (first published with the date 1690), Books III–IV; Gutenberg transcription identified as based on the second edition · IV.xv.5; IV.xvii.22–24, grounds of assent and accidentally arriving at truth
Selected original-English passages read; not collated against first-edition page images. Modern profile labels are explicitly distinguished from the terminology used by Locke. His account of ideas is a historical philosophical position, not a verified contemporary model of language or cognition.