Charles Taylor reder ut begreppen ...

"The state can be neither Christian nor Muslim nor Jewish; but by the same token it should also be neither Marxist, nor Kantian, nor Utilitarian. Of course, the democratic state will end up voting laws which (in the best case) reflect the actual convictions of its citizens, which will be either Christian, or Muslim, etc, through the whole gamut of views held in a modern society. But the decisions can’t be framed in a way which gives special recognition to one of these views. This is not easy to do; the lines are hard to draw; and they must always be drawn anew. But such is the nature of the enterprise which is the modern secular state. And what better alternative is there for diverse democracies?"
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Before proceeding farther, I should just say that this distinction in rational credibility between religious and non-religious discourse, supposed by (a) + (b), seems to me utterly without foundation.
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If we take key statements of our contemporary political morality, such as those attributing rights to human beings as such, say the right to life, I cannot see how the fact that we are desiring/enjoying/suffering beings, or the perception that we are rational agents, should be any surer basis for this right than the fact that we are made in the image of God. Of course, our being capable of suffering is one of those basic unchallengeable propositions, in the sense of (a), as our being creatures of God is not, but what is less sure is what follows normatively from the first claim."

Charles Taylor - Secularism and Critique