Necessity knows no law.

例句：

1. 1.The book is a must-read for anyone interested in history.
   这本书是任何对历史感兴趣的人必读的。
2. 2.We need to find a solution that meets all the requirements.
   我们需要找到一个满足所有要求的解决方案。
3. 3.He had no choice but to accept the necessity of the situation.
   他别无选择，只能接受这种局面的必要性。