Agnosticism signifies a position of suspended belief. According to it human beings do not have sufficient evidence to warrant either the affirmation or the denial of a proposition. It is a theory according to which things within a specified real mare unknowable. Thus for instance, some philosophers hold the view that the ultimate reality is unknowable, which is metaphysical agnosticism. Agnosticism in religion is the view that it is impossible for us to know whether or not God exists.