One's appearance bespeaks dignity corresponding to the depth of his character. One's concentrated effort, serene attitude, taciturn air, courteous disposition, thoroughly polite bearing, gritted teeth with a piercing look - each of these reveals dignity. Such outward appearance, in short, comes from constant attentiveness and seriousness.

Certainly! Here’s an explanation of the quote with bolded keywords:

This quote by Yamamoto Tsunetomo emphasizes that one’s appearance reflects the dignity that corresponds to the depth of character within. He suggests that true dignity is not superficial but revealed through various external signs such as concentrated effort, a serene attitude, a taciturn air, and a courteous disposition. These outward expressions showcase an inner strength and seriousness that command respect.

Tsunetomo highlights specific traits like a thoroughly polite bearing, gritted teeth, and a piercing look, indicating that dignity is communicated not only through actions but also through subtle demeanor and presence. These qualities arise from a life of constant attentiveness and seriousness, implying that dignity is cultivated through discipline and mindful living.

The origin of this quote is rooted in Tsunetomo’s work, particularly his writings on samurai ethics and the way of the warrior, where dignity, discipline, and respect are core values. His insights reflect the traditional Japanese philosophy that inner virtue inevitably shapes outward behavior.

Overall, the quote teaches that dignity is a holistic expression of one’s character and mindset, reminding us that cultivating seriousness and attentiveness in life naturally manifests in a respectful and commanding appearance.