◆老馬の智 Rouba no chi.
- 解釈：経験を積んだ者は、物事の方針を誤らないということ。また、愛を受けた者が主人の恩義を忘れない意。
- Literal：Wisdom of a horse in which it grew old.
- Interpretation：The man who gained experience does not mistake the plan of things. It is that the man who received love does not forget a master's favor. Experience is the best teacher.
- 類義：馬に道を任す。老馬道を知る。