#Concentrationの記事一覧
全力で行なうとは? [集中力の重要性と、雑念という罪について](What does it mean to give one's all? [The Importance of Concentration and the Sin of Distraction])
100%全力で行うこと②集中力と雑念について(Do 100% of your best.② On Concentration and Miscellaneous Thoughts)