author
d. 1940
Presented for decades as a wise Japanese philosopher, this name is now widely understood to be a literary persona tied to early self-help writing. The books linked to it became popular for their brisk, practical advice on judgment, influence, and everyday discipline.

by Yoritomo-Tashi
Research on the publishing history of Yoritomo-Tashi suggests that this was not a straightforward historical author profile, but a constructed persona used in early 20th-century inspirational and self-help literature. A scholarly study from the University of Lisbon describes Yoritomo-Tashi as a supposedly Japanese philosopher who became known through work connected to B. Dangennes, a pseudonym of the French writer Berthe Blanchard (died 1940).
Because of that, many old editions and catalogs treat Yoritomo-Tashi as an individual sage or philosopher, while modern scholarship treats the name much more cautiously. The works most often associated with the name include Common Sense: How to Exercise It, along with books about influence, willpower, and character.
That uncertain identity is part of what makes the name memorable today: these books sit at an interesting crossroads of philosophy, advice writing, translation, and publishing myth. For listeners, the appeal is usually less about a confirmed biography and more about the clear, compact way the books turn everyday habits and mental discipline into practical lessons.