Seek perfection of character. Be faithful. Endeavor. Respect others. Refrain from violent behaviour.
Karate begins and ends with courtesy.
What you have been taught by listening to others' words you will forget very quickly; what you have learned with your whole body you will remember for the rest of your life.
When two tigers fight, one is certain to be maimed, and one to die.
Karate-do begins with courtesy and ends with rei.
Only a true weakling is capable of true courage.