Toleration is the allowing, permitting, or acceptance of an action, idea, object, or person which one dislikes or disagrees with. Political scientist Andrew R. Murphy explains that "We can improve our understanding by defining "toleration" as a set of social or political practices and "tolerance" as a set of attitudes." Random House Dictionary defines tolerance as "a fair, objective, and permissive attitude toward those whose opinions, beliefs, practices, racial or ethnic origins, etc., differ from one's own".

Both these concepts inherently contain the idea of alterity, the state of otherness. Additional choices of how to respond to the "other," beyond toleration, do exist. Therefore, in some instances, toleration has been seen as 'a flawed virtue' because it concerns acceptance of things that were better overcome. Toleration cannot, therefore, be defined as a universal good, and many of its applications and uses remain contested.^: 2

Religious toleration may signify "no more than forbearance and the permission given by the adherents of a dominant religion for other religions to exist, even though the latter are looked on with disapproval as inferior, mistaken, or harmful". Historically, most incidents and writings pertaining to toleration involve the status of minority and dissenting viewpoints in relation to a dominant state religion. However, religion is also sociological, and the practice of toleration has always had a political aspect as well.^: xiii

Toleration assumes there is a conflict over something important, something that cannot otherwise be resolved through normal negotiation without resorting to war or violence. As political lecturer Catriona McKinnon explains, when it comes to questions like what is "the best way to live, the right things to think, the ideal political society, or the true road to salvation, no amount of negotiation and bargaining will bring them to an agreement without at least one party relinquishing the commitments that created the conflict in the first place. Such conflicts provide the circumstances of toleration ... [and] are endemic in society."^: 6 "The urgency and relevance of this issue is only too obvious: without tolerance, communities that value diversity, equality and peace could not persist (Vogt, 1997)."^: 1

An overview of the history of toleration and different cultures in which toleration has been practiced, and the ways in which such a paradoxical concept has developed into a guiding one, illuminates its contemporary use as political, social, religious, and ethnic, applying to LGBT individuals and other minorities, and other connected concepts such as human rights.