◆蛇は竹の筒に入れても、真っ直ぐにならぬ Hebi wa take no tsutsu ni iretemo, massugu niwa naranu.
- 解釈：生来精神の捩じくれた者は、その性格を直しにくいということ。
- Literal：Even if it puts a snake into the pipe of a bamboo, it does not become straight.
- Interpretation：Because, it is since nature is twisted. The twisted nature is not repaired easily.
- 類義：蛇の曲がり根性。