A message to white belts

I have in high school practiced karate and I really liked the sport. It's was challenging both physically and mentally and fighting was really fun.

I am thinking of starting again and last Thursday I went to my first karate training.
There an old sensei (8. dan) had a message to all the white belts:

When you start to play the violin you don't do that to make some noise,
you do that to become good at it. That's also how karate should be practiced.