1) The document discusses how attitude is a major factor in one's life and success, with only 10% of an iceberg visible above water while 90% is below the surface, similar to how little is known about a person's inner attitudes, beliefs, and motives.
2) It provides statistics showing that attitude makes up over 80% of what determines a person's life while knowledge and skills make up smaller percentages.
3) The document shares quotes about the importance of maintaining a positive attitude and outlook, and how attitude can influence actions and results more than any other factor.