Kathleen Gilroy learned several lessons about business from famous jazz musicians:
1. Like jazz ensembles, successful businesses require teamwork over many years, often without immediate recognition or financial rewards.
2. Quotes from jazz greats emphasize the importance of setting goals, focusing on quality over image, and constantly improving one's skills through practice.
3. Creativity involves simplifying complex ideas, as illustrated by the musician who said "I stole everything I heard."