" Consider using a three-level goal system to determine your achievement levels at a training session, during the next competition, or in your upcoming season: 1) bronze, 2) silver, and 3) gold. In this system, bronze symbolizes a desired result that would be a good outcome based on a reasonable assessment of past performances and current capabilities. Silver refers to a significant improvement. Finally, gold is equivalent to achieving a best time or delivering a major performance breakthrough. "

― , The Champion's Mind: How Great Athletes Think, Train, and Thrive