How do we develop our ethics? What are the primary sources for us to develop our ethical position?
On a personal basis we develop our ethics from environmental factors that take play in our early lives. Childhood is usually when we are taught moral decisions and right from wrong. If a child is raised by ethically upstanding parents one could assume that the child will then be ethically good as well, however, although out ethical views start being molded at a young age there are many factors that could skew a good persons ethics as they progress through life.
The environmental factors that create the development of our ethical standings come from sources such as; family members, cultural upbringing, religious beliefs, and philosophical ideals. While family members are unlikely to change throughout developmental stages the rest of these sources are like to develop as you do.