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 such as knowledge and skills are visible to others, while much more - including attitudes, values, beliefs, and motives - lies unseen below the surface. Maintaining a positive attitude is important as it acts as a "magnet" that attracts positive results, and our lives are largely a reflection of our attitudes.