A student practices until he gets it right, a master practices until he cant do it wrong
This emphasises the importance of continuous practice and improvement to achieve excellence in any field. The phrase suggests that practice is essential to mastering a skill, and that only through consistent and diligent practice can one achieve true mastery.
When a student begins to learn a new skill, they often make mistakes and struggle to perform the task correctly. However, through practice, they begin to improve and gradually gain competence. As they continue to practice, they become more proficient and confident in their abilities. 
A master, on the other hand, has achieved a high level of proficiency and mastery in their field. They have spent years practicing and refining their skills, and as a result, they can perform tasks with precision and ease. Their expertise is recognised by their peers, and they are often sought after for their knowledge and advice.
However, even a master recognises that there is always room for improvement. They continue to practice and refine their skills, striving to become even better at what they do. They are constantly challenging themselves to push beyond their limits and reach new heights of excellence.
The phrase also highlights the importance of persistence and resilience in achieving mastery. Becoming a master in any field requires a lot of hard work, dedication, and patience. It requires the ability to learn from mistakes, overcome obstacles, and persevere through setbacks.
Ultimately, the pursuit of mastery is a lifelong journey that requires a deep commitment to continuous learning and improvement. It involves a willingness to challenge oneself and take on new and more complex tasks, and a commitment to never stop growing and developing as a professional.
The phrase “A student practices until he gets it right, a master practices until he can’t do it wrong” highlights the importance of continuous practice and improvement in achieving excellence in any field. It suggests that only through consistent and diligent practice can one achieve true mastery, and that the pursuit of mastery is a lifelong journey that requires a deep commitment to continuous learning and improvement. Ultimately, by embracing the philosophy of “perfect practice makes perfect,” students and masters alike can achieve their full potential and make significant contributions to their respective fields.