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Gichin Funakoshi
True Karate is this: that daily life one's mind and body be trained and developed in a spirit of humanity, and that in critical times, one be devoted utterly to the cause of justice.
What is shotokan?
Shotokan is recognizable by its linear, direct punching, blocking, and kicking. Shotokan emphasizes correct posture, correct joint alignment, and formality of basic technique above all else. Basic techniques are defined to the last detail, and performing them properly is given the highest priority. This is called kime (focus).
IKKEN HISATSU
"one punch, death blow"
The Shotokan view is that purity of raw technique is most important. The ideology is that one elegant technique mastered so completely that it is as natural as flipping a light switch will finish off the opponent quickly and efficiently. In situations where there are multiple opponents, such an ability is believed essential because there may not be time to throw more than one technique per opponent, and grappling and getting tangled up with your adversary when two others are also trying to harm you is probably unwise..