"Religion is an insult to human dignity. Without it, you'd have good people doing good things and evil people doing evil things. For good people to do evil things, it takes religion." – Nobelist Steven Weinberg
Religion is a component of Philosophy, the two overlap in certain areas.
You must believe in some philosophy if you quote it.
Philosophy is composed of logic, epistemology, ethics, aesthetics, and the big one metaphysics.
All religions contain all or some of these components.
But these elements are dependent on one another. That is, it is hard to talk about ethics without including metaphysics. Because you have to understand the evolution of Philosophy and the relationship to the belief in the supernatural.
E.g. the reward for being good (ethics) was to go to heaven (metaphysics).
Its easy for you atheists to simply disregard the metaphysical aspects, but in reality without metaphysics in historical context we would have not developed into such a compassionate society.