一いち眼がん二に足そく三さん胆たん四し力りきMeaningsExpression1. firstly vision, secondly footwork, thirdly courage, fourthly technique (the most important aspects of kendo)Kanji used一one眼eyeball二two足foot三three胆gall bladder四four力powerComposed of一いち眼がんone eye; single-lens (reflex camera); one eye (in a group of stones)Noun二にtwo; 2Numeric足そくcounter for pairs of socks, shoes, etc.Counter三さんthree; 3Numeric胆たんliver; innards; courage; spirit; pluck; gutsNoun四しfour; 4Numeric力りきstrength; power; proficiency; ability; the strength of ... people; the strength of ... menNoun