一眼二足三胆四力
いちがんにそくさんたんしりき
firstly vision, secondly footwork, thirdly courage, fourthly technique (the most important aspects of kendo)
胆力 is read as たんりょく (tanryoku) and means courage.
たんりょく
tanryoku
いちがんにそくさんたんしりき
firstly vision, secondly footwork, thirdly courage, fourthly technique (the most important aspects of kendo)