Ethics are shaped through our early upbringing, behavior of those around us, cultural standards, experiences and our response to those experiences. The text mentions that the law, religion, and ethical relativism are also sources of ethics. Parental reinforcement on what is right and wrong and acceptable and unacceptable behavior during our early upbringing lays the foundation for how we go about living our lives as we grow up. The environment and how others around us behave have an impact on what we consider ethical through the daily choices that we make. Our culture contributes to the development of our ethics of what actions we think are justifiable. What may seem wrong in one culture may be justified in another. Laws can help us to decide what is bad and good behavior. Religion provides incentives to behave ethically and guidance on what is considered ethical.
The primary sources for us to develop our ethical position are the culture or environment around us and our experiences. Culture and environment exposes us to certain standards of life and when that is what we are surrounded by every day, those ethics become instilled in us as the ethics our parents instilled in us are. Through our life experiences, we reflect and can either decide we want to change the way we handled a situation or stick to what we thought was the ethical thing to do. As we experience life and are exposed to certain environments and cultures, we develop our own set of ethics.