strive for perfection of character (人格の完成に喫すること。).
Jinkaku ("character") is the essential set of
values, beliefs, attitudes, temperament, moral concepts, and ideals that
define our personality and guide our actions.
Because perfection (kansei) of this set of
traits and elimination of all of our flaws is a noble
goal that is not humanly possible, we can only
relentlessly strive (kissuru)—meaning to try
our best without ever giving up—to attain it.
Koto is a sentence ending that
basically means "without fail".
Always behave with respect and discipline
A simple way of thinking of respect (rei)
is treating people the way you want to be treated
yourself. Setsu (discipline) is doing what you are
supposed to do, when you are supposed to do it, without
being reminded by someone else. Shūshi
means "from start to finish" (of life;
not just karate class!), and suru is "to do".
So, a karate-ka has respect and discipline his
or her entire life.
Exemplify righteousness (信義を重んずること。).
just a long word that means to do what is right.
Omonzuru means "to be an example". So, to
"exemplify righteousness" means to do the right thing as
an example to others—especially if the right thing
is not the popular thing.
Persevere through all adversities
A literal translation of this would be "through (ni)
1,000 refinements (sentan) or
10,000 temperings (banren)
remain devoted/dedicated (kissuru)."
The word tan means to refine,
the way metal is refined by melting it to remove
impurities and imperfections. Ren
means to harden a metal by repeatedly beating it with a
hammer. So, even if you are heated to the
melting point 1,000 times (worked or trained to
exhaustion) or beaten down 10,000 times
(bruised and battered), never give up!
Always exercise self-control
Kekki (literally "blood
spirit") means impetuousness, yu
means to boil or boil-over, and hayaru
means to be foolishly quick to act.
Bekarazaru means "never ever". So a
more literal translation would be: "never ever
foolishly let your emotions boil suddenly over."
To state it in a positive ("do"), rather than negative
("don't") way: always exercise self-control.
And self-control truly is exercise,
because it requires a lot of effort!