Faith and rationality

Faith and rationality are two ideologies that exist in varying degrees of conflict or compatibility. Rationality is based on reason or facts. Faith is belief in inspiration, revelation, or authority. The word faith usually refers to a belief that is held with lack of, in spite of or against reason or evidence, while another position holds that it can refer to belief based upon a degree of evidential warrant.

Although the words faith and belief are sometimes erroneously conflated and used as synonyms, faith properly refers to a particular type (or subset) of belief, as defined above.

Broadly speaking, there are two categories of views regarding the relationship between faith and rationality:

Fides et Ratio

Fides et Ratio (English: Faith and Reason) is an encyclical promulgated by Pope John Paul II on 14 September 1998. It was one of 14 encyclicals issued by John Paul II. Cardinal Georges Cottier, Theologian emeritus of the Pontifical Household and now Cardinal-Deacon of Santi Domenico e Sisto the University Church of the Pontifical University of Saint Thomas Aquinas, Angelicum was influential in drafting the encyclical. The encyclical primarily treats the relationship between faith and reason.

The encyclical posits that faith and reason are not only compatible, but essential together. Faith without reason, he argues, leads to superstition. Reason without faith, he argues, leads to nihilism and relativism. He writes:

Although reason creates a "systematic body of knowledge," the Pope avers, its completeness is illusory:

Without a grounding in spiritual truth, he continues, reason has:

On the wrong turns in modern philosophy and the duty of the magisterium:

In sum, the Pope "makes this strong and insistent appeal" that "faith and philosophy recover the profound unity which allows them to stand in harmony with their nature without compromising their mutual autonomy. The parrhesia of faith must be matched by the boldness of reason.

Reason

Reason is the capacity for consciously making sense of things, applying logic, establishing and verifying facts, and changing or justifying practices, institutions, and beliefs based on new or existing information. It is closely associated with such characteristically human activities as philosophy, science, language, mathematics, and art and is normally considered to be a definitive characteristic of human nature. The concept of reason is sometimes referred to as rationality and sometimes as discursive reason, in opposition to intuitive reason.

Reason or "reasoning" is associated with thinking, cognition, and intellect. Reason, like habit or intuition, is one of the ways by which thinking comes from one idea to a related idea. For example, it is the means by which rational beings understand themselves to think about cause and effect, truth and falsehood, and what is good or bad. It is also closely identified with the ability to self-consciously change beliefs, attitudes, traditions, and institutions, and therefore with the capacity for freedom and self-determination.

Faith

Faith is confidence or trust in a person or thing; or the observance of an obligation from loyalty; or fidelity to a person, promise, engagement; or a belief not based on proof; or it may refer to a particular system of religious belief, such as in which faith is confidence based on some degree of warrant. The term 'faith' has numerous connotations and is used in different ways, often depending on context.

Etymology

The English word faith is thought to date from 1200–50, from the Middle English feith, via Anglo-French fed, Old French feid, feit from Latin fidem, accusative of fidēs (trust), akin to fīdere (to trust).

Epistemological validity

There is a wide spectrum of opinion with respect to the epistemological validity of faith.

Fideism

Fideism is an epistemological theory which maintains that faith is independent of reason, or that reason and faith are hostile to each other and faith is superior at arriving at particular truths (see natural theology).

Fideism is not a synonym for religious belief, but describes a particular philosophical proposition in regard to the relationship between faith's appropriate jurisdiction at arriving at truths, contrasted against reason. It states that faith is needed to determine some philosophical and religious truths, and it questions the ability of reason to arrive at all truth. The word and concept had its origin in the mid- to late-19th century by way of Catholic thought, in a movement called Traditionalism. The Roman Catholic Magisterium has, however, repeatedly condemned fideism.