According to Chapter 4 “Ethics and Ethical Reasoning”, I learned that not only in our life but also in the business, people attach importance to ethics and morals. Morals exist in our mind, it seems that the rules people set for themselves. But for different people, they have different requirement for themselves,which is a kind of self-control and self-management. Ethics is the consensus of everybody, which are the binding rules, all of us should follow it. In the business, Morals equal to value, specifically, it symbolizes personal value. Ethics equal to profit. In my viewpoint, I think it means that only following the rules can keep the whole business operating normally After I watch the video that Carly Fiorina introduce her book “Tough Choices”, the author teach me a lot. Choice constitutes our life, we make many choices everyday, choice decide which direction we will go in the future. In her book. there are two main point she attached importance to, leadership and change. People fear change because it is unknown, they need to be better and strong to overcome difficulties. so .they also have bravery to try and have ability to through the barrier. The leaders in the companies who stay in the higher position with more power and responsibility should make the wise decision to lead their teams and companies to get a good future. They need to keep change, and also motivate and encourage their employee to keep change to support the dynamic to the company developing. John Morgridge combined Ethics with Leadership in his presentation. The leaders should be moral who will follow the ethics. Because the whole companies will follow the leaders. A unethical leader can’t make a good decision for their company. In “Ethics and Leadership with John Morgridge Cisco Systems”. John Morgridge think a value for leader is very important, the value decided by sense of