The importance of self-discipline in achieving goals and compares it to build a muscle that requires constant practice, repetition, and persistence. It emphasizes that self-discipline is essential for progress and improving performance but should be approached gradually and not overworked to avoid burnout and stress. It also highlights the importance of rest and recovery time for both muscle and self-discipline development. Overall, the video suggests that self-discipline is a skill that can be learned and honed over time to achieve success and lead a healthier and more productive life. Recognizing self-discipline as a powerful tool that helps her stay determined and persistent regardless of obstacles of accomplishing goals, Bao Tran - a senior student of Greenwich likens self-discipline to a muscle. She believes in order to achieve the goals, it needs more than just practice because challenges may arise throughout the journey. This talk was given at a TEDx event using the TED conference format but independently organized by a local community. Learn more at https://www.ted.com/tedx