Once you have embarked upon the way, it becomes a never ending quest for refinementnt in the pursuit of unattainable perfection - just like the Borg. As with healthy eating, or being courteous, there is no point at which karate do ceases to be valuable and beneficial.
10. Apply the way of karate to all things. Therein lies its beauty
Hitotsu, ara yuru mono o karateka seyo; sokoni myomi ari
Because karate encompasses so many aspects, both physical and spiritual, everything you do in your life has aspects that pertain to your training. Self discipline at school or work, posture on the dance floor, courtesy to friends or elders
11. Karate is like boiling water, without heat it returns to its tepid state
Hitotsu, karate Wa Yu No Gotoku Taezu Netsu O Atae Zareba Motono Mizuni Kaeru
Karate is only truly effective when it is at its sharpest, but it will only stay sharp with constant practice. If you take even a week or two off training, it will start to dull noticeably.
12. Do not think about winning; think rather of not losing
Hitotsu, katsu kangae wa motsuna; makenu kangae wa hitsuyo
If you are obsessed with victory, you may adopt aggressive tactics that expose vulnerabilities that can be exploited, and you will become predictable. If your goal is simply not to be defeated, you may attack or defend, counter or evade. Your only goal is not to be defeated. Just like Commander Data demonstrated in "Peak Performance".
13. Make adjustments according to your opponent
Hitotsu, tekki ni yotte tenka seyo
一、敵に因って轉化せよYou cannot use a one-size fits all fighting tactic. Against a fast opponent, your tactics must be very different than against a slow powerful one for instance. This principle applies in any confrontational situation, such as interactions with your boss or partner.
14. The outcome of a battle depends on how one handles emptiness and fullness (weakness and strength)
Hitotsu, tattakai wa kyo-jitsu no soju ikan ni ari
Don't try to hammer a square peg into a round hole when fighting. Don't use irrational tactics, such as going toe to toe with a very physically strong fighter. Contract or evade when your opponent attacks. Expand or attack when he contracts. Find the rhythm of combat and fight in harmony with it.
15. Think of hands and feet as swords
Hitotsu, hi to no te-ashi wa ken to omoe
Just as you can hack and stab with a sword, your hands and feet can be used in the same way and should be conditioned accordingly. Targets that are vulnerable to a sword can usually be attacked in a similar way using hands or feet.
16. When you step beyond your own gate, you face a million enemies
Hitotsu, danshi mon o izureba hyakuman no teki ari
Danger lies all around us as soon as we leave the relative safety of our familiar domains (home, the area we live; even our traditional ways of thinking), so remain ever vigilant. By "foes" Funakoshi is probably not referring simply to physical enemies, but any of the dangers that exist in daily life.
17. Formal stances are for beginners; later one stands naturally
Hitotsu, kamae wa shoshinsha ni atowa shizentai
In his Book of Five Rings Miyamoto Musashi cautioned that you should only use natural footwork, cautioning against having your mind in your feet. Stances are ways for beginners to learn how to use their weight and position their bodies for or against action. Once those lessons are learned and internalised, the discrete stances are no longer necessary, and you should lift your mind out of your feet, moving smoothly and fluidly into whatever position is most beneficial.
18. Perform kata exactly; actual combat is another matter
Hitotsu, kata wa tadashiku, jisen wa betsumono
Kata is not merely the practice of combat moves, but a zen discipline of physical and spiritual mastery. If you practice kata solely as combat you will miss the other benefits. However, always remember that real combat is far less predictable; far messier and nastier than kata. Kata is like an idealised drawing of combat.
19. Do not forget the employment of withdrawal of power, the extension or contraction of the body, the swift or leisurely application of technique
Hitotsu, chikara no kyojaku tai no shinshuku waza no kankyu
Use a full range of application in your techniques. It is not enough to always be powerful, or always fast, nor to always attack or always defend.
20. Be constantly mindful, diligent, and resourceful, in your pursuit of the Way
Hitotsu, tsune ni shinen ku fu seyo
Always be thinking, always committed, and be creative and versatile about your practice of karate do and the knowledge of fighting and peace.