Dojo Kun - literal translation means "training hall rules". There are five main rules that serve as guiding principles for all who train in the dojo. Although they are usually listed in a set order, no one rule is more important than any other. To emphasise this all five are prefixed with hitotsu and end with koto, which together mean "one point".
One Point! Seek Perfection of Character
Hitotsu! Jinkaku kansei ni tsutomuru koto