The Dojo Kun and Twenty Precepts.
DOJO KUN
TO SEEK PERFECTION OF CHARACTER
                                       TO BE FAITHFUL
                                        TO ENDEAVOUR
                                        TO RESPECT OTHERS
                                         TO REFRAIN FROM VIOLENT BEHAVIOUR

Twenty Precepts
Never forget: karate begins with rei and ends with rei.
rei has the meaning of courtesy, respect

There is no first hand in karate
(there is no first attack in karate)

Karate supports righteousness

First understand yourself, then understand others

The art of mind is more important than the art of technique

The mind needs to be freed

Trouble is born of negligence

Do not think karate is only in the dojo

The training of karate requires a lifetime

Transform everything into karate, there lies the exquisiteness

Genuine karate is like hot water, it cools down if you do not keep on heating it   

Do not have and idea of winning, while the idea of not losing is necessary

Transform yourself according to the opponent

The outcome of the fight all depends on the manoeuvre

Imagine one's arms and legs as swords

Once you leave the shelter of home, there are a million enemies

Postures are for the beginner, later they are natural positions

Do the kata correctly, the real fight is a different matter

Do not forget the control of the dynamics (power), the elasticity (of body) and the speed (of technique)
Always be good at the application of everything that you have learned.