From an interview with Dr. Yang, Jwing-Ming at The Combative Corner:
"Art takes a lot of time and the right mind to truly appreciate and enjoy. Many things we do in our everyday lives and careers can be considered very complex and beautiful forms of art. Whether it is martial arts, music, writing, painting, engineering, speaking a language, healing and helping people, playing sports, playing chess, or whatever we concentrate on and dedicate ourselves to, the development and true feeling of the breadth of each art-form can only be felt when practiced diligently, with discipline, with humility, and with the right intentions. Without these things, the art you practice will always be only on the surface. You should continue searching deeper and deeper into your practice. Keep finding resources and people to learn from and help lead you. Don’t get stuck in the same spot. What you will discover is so rewarding. Keep your cup empty and you will always see the beautiful horizon ahead. If your cup is full, then there will be too many clouds obstructing your view. I began training martial arts because I wanted to fight, but from that time until now, after more than 50 years of practice, it has evolved into something so much more."
On keeping your cup empty:
A young Samurai swordsman entered the house of a famous Zen master. He looked at the master, bowed and said, "Master! I have reached a deep level of Zen, both in theory and practice. I have heard you are great so I come here to bow to you and hope you can teach me something." The Zen master looked at this proud young man. Without a word, he went into the back room and brought out a teapot and a teacup. He placed the cup in front of the young man and started to pour the tea into the cup. The tea filled the cup quickly and soon began to overflow. The young man looked at the old man with a confused expression. He said, "Stop, master! The teacup is overflowing". The old Zen master put the teapot down and smiled at him. He said, "This is you. You are too full already. I cannot teach you. If you wish to learn, you must first empty your cup."