〜はもとより

Not only ~; Let alone ~; Of course ~

1. Overview

The expression 「〜はもとより」 is used to indicate that not only the stated item or situation is true, but also that something else (often implied) is equally or more true. It emphasizes that the first item is just the beginning, leading to additional implications or examples.

2. Structure

• Noun + はもとより
  • This structure is used to introduce the primary subject and then imply that something else related to it is also true.

3. Usage Explanation

1. Emphasizing Basics
   It emphasizes that the mentioned situation or item is just the starting point, and the speaker expects the listener to recognize that more follows.

2. Common in Contexts
   This expression is commonly used in formal or written language, such as in speeches, reports, or articles, to stress the importance or obviousness of a situation.

4. Example Sentences

1. このレストランは料理が美味しいのはもとより、サービスも素晴らしい。
   (This restaurant has delicious food, not to mention that the service is also excellent.)

2. 彼女は日本語はもとより、英語も流暢に話す。
   (She speaks Japanese, let alone English fluently.)

3. 健康のためには、運動はもとより、食事にも気を付ける必要がある。
   (For health, not only is exercise important, but one must also pay attention to diet.)

5. Key Points to Note

1. Contextual Understanding: The implication of "more" is essential; the expression often suggests that the next point is expected to be obvious or significant.
2. Formal Usage: This phrase is often found in more formal contexts rather than casual conversations.

6. Similar Grammar

• 〜はもちろん: Similar in meaning, emphasizing that something is obviously true.
  Example: 「彼は優秀な学生はもちろん、スポーツも得意だ。」
  (He is not only an excellent student, but he is also good at sports.)

7. Alternative Grammar

• 〜は言うまでもなく: Another way to express that something is so obvious that it doesn’t need to be mentioned.
  Example: 「安全は言うまでもなく、快適さも大事だ。」
  (Safety goes without saying, and comfort is also important.)

8. Summary

「〜はもとより」 is used to express that a stated item or situation is just the beginning, implying that other related items are also true or relevant. It emphasizes the obviousness of the stated condition and is commonly used in formal contexts.