Japanese proverb of the day highlights the meaning of “Those who are strong with the blade are good at courtesy.” This saying reflects the traditional idea that true strength is not defined only by physical skill or power, but also by discipline, humility, and respectful behavior toward others. It suggests that a person who has mastered the ability to wield force—symbolized by the blade—also understands the importance of restraint and proper conduct in daily life. Rather than encouraging aggression, the proverb emphasizes that genuine mastery naturally comes with self-control and politeness.