◆麒麟も老いては、駑馬に劣る Kirin mo oite wa daba ni otoru.
- 解釈：一日に千里を走る駿馬（しゅんめ）も、年には勝てず駄馬（だば）にも負けるように、優れた人も年を取ると、凡人の働きに及ばなくなるという意。
- Literal：A swift horse also old and is inferior to a hack.
- Interpretation：When the superior person gets old, I become inferior to the work of the ordinary man. A man of talent past his prime is no better than one who never had talent to begin with.
- 類義：昔千里も今一里。昔の剣、今日の菜刀。
- 反義：腐っても鯛。