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Reason is the capacity of consciously applying logic by drawing valid conclusions from new or existing information, with the aim of seeking the truth. [1] It is associated with such characteristically human activities as philosophy, religion, science, language, mathematics, and art, and is normally considered to be a distinguishing ability possessed by humans.
In the most general terms, a reason is a consideration in an argument which justifies or explains an action, a belief, an attitude, or a fact. [1] Normative reasons are what people appeal to when making arguments about what people should do or believe. For example, that a doctor's patient is grimacing is a reason to believe the patient is in pain.
The modern [1] formulation of the principle is usually ascribed to early Enlightenment philosopher Gottfried Leibniz.Leibniz formulated it, but was not an originator. [2] The idea was conceived of and utilized by various philosophers who preceded him, including Anaximander, [3] Parmenides, Archimedes, [4] Plato and Aristotle, [5] Cicero, [5] Avicenna, [6] Thomas Aquinas, and Spinoza. [7]
Polya’s intention is to teach students the art of guessing new results in mathematics for which he marshals such notions as induction and analogy as possible sources for plausible reasoning. The first volume of the book is devoted to an extensive discussion of these ideas with several examples drawn from various field of mathematics.
First page of the 1903 English translation. On the Fourfold Root of the Principle of Sufficient Reason (German: Ueber die vierfache Wurzel des Satzes vom zureichenden Grunde) is an elaboration on the classical principle of sufficient reason, written by German philosopher Arthur Schopenhauer as his doctoral dissertation in 1813. The principle of ...
Logic and rationality have each been taken as fundamental concepts in philosophy. They are not the same thing. Philosophical rationalism in its most extreme form is the doctrine that knowledge can ultimately be founded on pure reason, while logicism is the doctrine that mathematical concepts, among others, are reducible to pure logic.
In contrast to faith meaning blind trust, in the absence of evidence, even in the teeth of evidence, Alister McGrath quotes Oxford Anglican theologian W. H. Griffith-Thomas (1861–1924), who states faith is "not blind, but intelligent" and "commences with the conviction of the mind based on adequate evidence", which McGrath sees as "a good and ...
Justification (also called epistemic justification) is a property of beliefs that fulfill certain norms about what a person should believe. [1] [2] Epistemologists often identify justification as a component of knowledge distinguishing it from mere true opinion. [3]