Master Funakoshi's original philosophy of Karate-do. 

As set out in the Niju Kun or Twenty Precepts:
i. Karate is not only Dojo training.
ii. Karate begins and ends with courtesy.
iii. There is no first attack in karate.
iv. One who practices Karate must follow the way of justice.
v. First you must know yourself. Then you can know others.
vi. Spiritual development is paramount; technical skills are merely a means to the end. (Spirit before technique.)
vii. You must be ready to free your mind.
viii. Accidents come from inattention.
ix. Karate is a lifelong training, not only in the dojo. (You will never stop learning karate.)
x. Put Karate into everything you do, make it a part of your life and you will find 'myo'.
xi. Karate is like hot water: if you do not give heat constantly, it will become cold again.
xii. Do not think you have to win: think instead, that you do not have to lose.
xiii. Victory depends on your ability to tell vulnerable points from invulnerable ones.
xiv. Move according to your opponent.
xv. Consider your opponent's hands and legs as you would sharp swords.
xvi. Be aware of your actions so as not to invite trouble.
xvii. Ready position for beginners and natural position for advanced students. (First master low stances, then natural posture.)
xviii. Kata is one thing: engaging in a real fight is another. (Practicing kata is no substitute for the real thing.)
xix. Do not forget: (1) strength and weakness of power, (2) expansion and contraction of the body, (3) slowness and speed of techniques.
xx. Think of ways to apply these precepts every day.