家訓

1. Origins, structure, and basic meaning

• Structure: 家訓 is read as かくん; 家 (family) and 訓 (instruction) form a family precept or motto guiding conduct.
• Basic usage: Use 家訓を書き残す for preserving it in writing and 家訓に疑問を抱く for questioning it.

2. Common pitfalls and similar expressions

• Short phrase and guiding principle
  • It may be written as a brief motto, but it also carries the force of a principle passed down within a family.
• Not an absolute law
  • It is a family rule or value that characters may question, not a law imposed by the state.