idiom
Keep your friends close and your enemies closer
Il est important de maintenir de bonnes relations avec vos amis, mais il est tout aussi important de comprendre vos ennemis.
Meaning
It's important to maintain good relationships with your friends, but it's equally important to understand your enemies.
Example
He always watches his competitors carefully because he believes in **keeping your friends close and your enemies closer**.
Il surveille toujours attentivement ses concurrents parce qu'il croit en **garder vos amis proches et vos ennemis encore plus proches**.