To what extent do you think our moral codes are governed by our reasoning ability?

There are two extreme views. On one end, there are those who say that our sense of right and wrong is purely instinctual. We act first and justify it later. On the other end, there are those who say that we use our intellect to guide our actions.

I think it is a combination of both. We are born with a sense of what is right and wrong, but this can be shaped by our intellect. For example, it is natural to distrust people who look or act differently from us, but our sense of reason can intervene to say that this distrust is unwarranted.