be a law to oneself

例句：

1. 1. I believe that being a law to oneself is essential for personal growth.
   我相信对自己来说，这是一条法律对于个人成长是必要的。
2. 2. She always follows the same routine as if it were a law to her.
   她总是遵循同样的日常习惯，好像那是对她来说是一条法律一样。
3. 3.As a child, he was taught to respect his elders and this became a law to him.
   作为一个孩子，他被教导要尊重他的长辈，这对他来说成了一条法律。