◆其の子を知らざれば、其の友を視よ Sono ko wo shirazareba, sono tomo wo miyo.
- 解釈：その子の性行は友達を見れば分かる。人は似た者同士集まるということ。
- Literal：See the friend, when you do not know the child. His friend knows him well.
- Interpretation：The child's character is understood if the friend is seen. As for people, people who are alike gather. His friend knows him well.
- 類義：馬は馬連れ、牛は牛連れ。其の子を知らずんば其の父を視よ。