A MASTER is more than just training for a certain period of time. Many people train for a long time in the martial arts and get to master grade but in the eyes of many are not a true master.
A Master is someone who understands the foundation and principles of the martial arts as well as being physically and technically correct. It is someone who has people skills and care about their students both inside and outside of the Dojang. A true master is someone who gives and asks for nothing in return except respect and loyalty.