This is the Okinawa Kenpo Dojo Kun found in hundreds of martial arts schools.
Look on your Dojo wall. If it is an image that resembles this AND your school teaches some variance of Okinawa Kenpo, Ryukyu Kempo, Okinawan Karate- the calligraphy is done by Taketo Nakamura, Grandmaster of Okinawa Kenpo Karate Kobudo. Saiko Shian Nakamura is the son of the late Shigeru Nakamura. In this coming year- be true to your kata, kobudo, kumite and shin. Only you know your karate best. Do not hesitate to question, practice, “fight” (in the bogu gear of course) and live karate every day.