What is Ethics?

For me, Ethics can´t be defined as other words; i think Ethics is the art of act good. But taking that in count, how do you know you are acting good?, probably what you think is really normal and common, in other part of the word can be really bad, and even offensive. But certainly, ethics has a lot to do with how and where you had been raised, because it define what you think is good, and how you should act to be a "good person", that what is ethics for, to act the way we think we should act, the right way to do the different activities we do normally or how to act in a specific situation. Ethic is more than cultural or religious, is a way to live; the art of doing things good. For example, for me, when i found a cellphone, it's importante to return it to it's owner, but that is because i know how it feels to lost something that is important to you but no one seems to care. Ethics can be too, the experiences in your life that make you change your mind about something.