Complex themes

Nuances and subtleties are basically the same thing.

countless artful statements

There are many obvious ways to manage employees, however it takes a long time to learn all of the subtleties invovled in order to manage them skillfully.

Subtleties refer to delicate or nuanced details in a situation, conversation, or idea that may not be immediately obvious or apparent. They often require careful observation or reflection to fully appreciate or understand.