"Les choses changent."
Here's a breakdown:
* Les: The (plural definite article)
* choses: things
* changent: change (third-person plural present tense of "changer")
Here are some other ways to express the same idea in French, with slightly different nuances:
* Tout change: Everything changes (more emphasis on the totality of change)
* Le monde change: The world changes (emphasizes the broader context)
* Les temps changent: Times change (emphasizes the passage of time)
* La vie change: Life changes (emphasizes the personal aspect of change)
The best way to choose the right expression depends on the specific context and what you want to emphasize.