The relationship between religion and science takes many forms as the two fields are both broad. They employ different methods and address sometimes different questions. The scientific method relies on an objective approach to measure, calculate, and describe the natural/physical/material universe. Religious methods are more subjective (or intersubjective in community), relying on varying notions of authority, ideas believed to have been revealed, intuition, belief in the supernatural, individual experience, or a combination of these to understand the universe.

Common to all these types is the anthropomorphic character of their conception of God. In general, only individuals of exceptional endowments, and exceptionally high-minded communities, rise to any considerable extent above this level. But there is a third stage of religious experience which belongs to all of them, even though it is rarely found in a pure form: I shall call it cosmic religious feeling. It is very difficult to elucidate this feeling to anyone who is entirely without it, especially as there is no anthropomorphic conception of God corresponding to it.

Relation of science to religion very different from the usual one. When one views the matter historically, one is inclined to look upon science and religion as irreconcilable antagonists, and for a very obvious reason. The man who is thoroughly convinced of the universal operation of the law of causation cannot for a moment entertain the idea of a being who interferes in the course of events - provided, of course, that he takes the hypothesis of causality really seriously. He has no use for the religion of fear and equally little for social or moral religion. A God who rewards and punishes is inconceivable to him for the simple reason that a man's actions are determined by necessity, external and internal, so that in God's eyes he cannot be responsible, any more than an inanimate object is responsible for the motions it undergoes. Science has therefore been charged with undermining morality, but the charge is unjust. A man's ethical behavior should be based effectually on sympathy, education, and social ties and needs; no religious basis is necessary. Man would indeed be in a poor way if he had to be restrained by fear of punishment and hopes of reward after death.

The relation between these two great cultural forces has been tumultuous, many-faceted, and confusing. This entry will concentrate on the relation between science and the theistic religions: Christianity, Judaism, Islam and theistic varieties of Hinduism and Buddhism, where theism is the belief that there is an all-powerful, all-knowing perfectly good immaterial person who has created the world, has created human beings ‘in his own image,' and to whom we owe worship, obedience and allegiance. There are many important issues and questions in this neighborhood; this entry concentrates on just a few.

There have been many conferences recently discussing the relationship between science and religion. The Templeton Foundation, for example, has supported numerous conferences on this theme. Many of those participating in these discussions apparently assume that science and religion are compatible. They argue that there is no contradiction between them, and some even maintain that science confirms the basic principles of religious faith.