Philosophy of religion is the philosophical study of the meaning and nature of religion. It includes the analyses of religious concepts, beliefs, terms, arguments, and practices of religious adherents. The scope of much of the work done in philosophy of religion has been limited to the various theistic religions. More recent work often involves a broader, more global approach, taking into consideration both theistic and non-theistic religious traditions. The range of those engaged in the field of philosophy of religion is broad and diverse and includes philosophers from the analytic and continental traditions, Eastern and Western thinkers, religious believers and agnostics, skeptics and atheists. Philosophy of religion draws on all of the major areas of philosophy as well as other relevant fields, including theology, history, sociology, psychology, and the natural sciences.
There are a number of themes that fall under the domain of philosophy of religion as it is commonly practiced in academic departments in North America and Europe. The focus here will be limited to six: (1) religious language and belief, (2) religious diversity, (3) concepts of God / Ultimate Reality, (4) arguments for and against the existence of God, (5) problems of evil and suffering, and (6) miracles.
In the West, most work done in philosophy of religion historically has been theistic. More recently, there has been a growing interest in religions and religious themes beyond the scope of theism. While awareness of religious diversity is not a new phenomenon, philosophers of religion from both the East and the West are becoming increasingly more aware of and interactive with religious others. It is now common to see contributions in Western philosophy of religion literature on various traditions, including Hinduism, Buddhism, Daoism, Confucianism, and African religions.
One challenge to this form of pluralism is that, since each of the religions is capturing only an aspect of the transcendent, it seems that one would obtain a better understanding of its essence by creating a new syncretistic religion in order to glean a more comprehensive understanding of Ultimate Reality. Also, since religious adherents are only glimpsing the transcendent through properties which are themselves enculturated within the various traditions, descriptions of Ultimate Reality cannot offer adequate knowledge claims about it. So one is left with at least a mitigated form of religious skepticism.
In much of Eastern religion, including Buddhism, Taoism, and the Advaita Vedanta school of Hinduism, Ultimate Reality is understood quite differently. It is not a personal creator God, but an absolute state of being. It cannot be described by a set of attributes, such as omniscience or omnipotence, for it is undifferentiated Absolute Reality. Taoists refer to it as the Tao; Hindus refer to it as Brahman; for Buddhists, the name varies and includes Shunyata and Nirvana. These different conceptions of Ultimate Reality bring with them distinct understandings of other significant issues as well, such as salvation/liberation, life after death, and evil and suffering, among others.
It is generally the case that religious adherents do not hold their religious convictions because of well-articulated reasons or arguments which support those convictions. However, reasons and arguments are sometimes used by believers to defend and advance their positions. Arguments for the existence of God have been utilized in natural theology and theistic apologetics for at least two millennia. Three which have been prominent historically and still receive special attention in contemporary philosophy of religion discussions are the ontological, cosmological, and teleological arguments.
Cosmological arguments begin by examining some empirical or metaphysical fact of the universe, from which it then follows that something outside the universe must have caused it to exist. There are different types of cosmological arguments, and its defenders include some of the most prominent thinkers spanning the history of philosophy, including Plato, Aristotle, ibn Sina, al-Ghazali, Maimonides, Aquinas, Descartes, and Leibniz. Three versions of the argument that have received much attention are the Thomistic contingency argument, the Leibnizian sufficient reason argument, and the kalam argument.
Given the advances of science and the retreat of religious beliefs, many in the latter half of the twentieth century agreed with the general Freudian view that a new era was on the horizon in which the infantile illusions, or perhaps delusions, of religion would soon go the way of the ancient Greek and Roman gods. With the onset of the twenty-first century, however, a new narrative has emerged. Religion has not fallen into oblivion, as many anticipated; in fact, religious belief is on the rise. Many factors account for this, including challenges to psychological and sociological theories which hold belief in God to be pathological or neurotic. In recent decades these theories have themselves been challenged by medical and psychological research, being understood by many to be theories designed primarily to destroy belief in God. Another important factor is the increase in the number of believing and outspoken scientists, such as Francis Collins, the director of the human genome project.
In the latter half of the twentieth century, the logical argument held sway. But by the end of that century, it was widely acknowledged by philosophers of religion that the logical problem had been rebutted. One reason is that as claims (1) and (2) are not explicitly contradictory, there must be hidden premises or unstated assumptions which make them so. But what might those be The assumed premises/assumptions appear to be something along these lines: (a) an omnipotent God could create any world, (b) an omnibenevolent God would prefer a world without evil over a world with evil, and (c) God would create the world he prefers. Given these claims, (1) and (2) would be logically incompatible. However, it turns out that at least (a) may not be true, even on a classical theistic account. It could be that a world with free agents is more valuable than a world with no free agents. Further, it could be that such free agents cannot be caused or determined to do only what is morally right and good, even by God. If this is so, in order for God to create agents who are capable of moral good, God had to create agents who are capable of moral evil as well. If this is a logical possibility, and it seems to be so, then premise (a) is not a necessary truth because God cannot create just any world.
Recent discussions of miracles by philosophers of religion have often focused on the concept of natural law, probability theory, and the role of religion as evidence for a particular religion or for belief in God.
Philosophy of religion is a flourishing field. Beyond those specific areas described above, there are also a number of important currents emerging, including feminist and continental approaches, renewed interest in medieval philosophy of religion, and an emphasis on the environment, race and ethnicity, and science and faith.
Philosophy of religion is \"the philosophical examination of the central themes and concepts involved in religious traditions\". Philosophical discussions on such topics date from ancient times, and appear in the earliest known texts concerning philosophy. The field is related to many other branches of philosophy, including metaphysics, epistemology, and ethics.
The philosophy of religion differs from religious philosophy in that it seeks to discuss questions regarding the nature of religion as a whole, rather than examining the problems brought forth by a particular belief-system. It can be carried out dispassionately by those who identify as believers or non-believers.
Philosopher William L. Rowe characterized the philosophy of religion as: \"the critical examination of basic religious beliefs and concepts.\" Philosophy of religion covers alternative beliefs about God or gods or both, the varieties of religious experience, the interplay between science and religion, the nature and scope of good and evil, and religious treatments of birth, history, and death. The field also includes the ethical implications of religious commitments, the relation between faith, reason, experience and tradition, concepts of the miraculous, the sacred revelation, mysticism, power, and salvation.
The term philosophy of religion did not come into general use in the West until the nineteenth century, and most pre-modern and early modern philosophical works included a mixture of religious themes and non-religious philosophical questions. In Asia, examples include texts such as the Hindu Upanishads, the works of Daoism and Confucianism and Buddhist texts. Greek philosophies like Pythagoreanism and Stoicism included religious elements and theories about deities, and Medieval philosophy was strongly influenced by the big three monotheistic Abrahamic religions. In the Western world, early modern philosophers such as Thomas Hobbes, John Locke, and George Berkeley discussed religious topics alongside secular philosophical issues as well.
The philosophy of religion has been distinguished from theology by pointing out that, for theology, \"its critical reflections are based on religious convictions\". Also, \"theology is responsible to an authority that initiates its thinking, speaking, and witnessing ... [while] philosophy bases its arguments on the ground of timeless evidence.\"
Some aspects of philosophy of religion have classically been regarded as a part of metaphysics. In Aristotle's Metaphysics, the necessarily prior cause of eternal motion was an unmoved mover, who, like the object of desire, or of thought, inspires motion without itself being moved. Today, however, philosophers have adopted the term \"philosophy of relig