Only 10% of an iceberg is visible above the waterline, with the remaining 90% hidden below the surface. Similarly, only a small portion of a person's attributes, like their behaviors and skills, are visible to others, while much of their character, including their attitudes, values, beliefs and motives remain unseen. Maintaining a positive attitude is important because, like the largest part of an iceberg, much of who we are internally drives our actions and impacts our lives, even if it remains unknown to others.