1) Attitude comes from within and can be either positive or negative, impacting how one sees themselves and the world.
2) A person's attitude is a choice and can be changed, despite one's environment or past experiences. Through self-assessment and effort, one can develop a more positive attitude.
3) Developing a positive attitude involves taking responsibility for one's thoughts and behaviors, thinking positively, influencing one's environment in positive ways, and regularly renewing one's attitude through various techniques like humor, exercise, and simplifying one's life. Maintaining a positive attitude can lead to greater success.