Dr. Eliyahu M. Goldratt spent his entire adult life fighting to show that it is possible to make this world a better place. We must have the honesty to see reality as it is, we must have the courage to challenge assumptions, and above all, we must use the gift of thinking. Having applied these principles to various management fields, he created the Theory of Constraints. His concepts and teachings have expanded beyond management and are being used in healthcare, education, counseling, government, agriculture and personal growth - to name a few fields using TOC. His legacy is invaluable.