What does the phrase let well enough alone mean?

"Let well enough alone" means to not try to improve or change something that is already satisfactory. It implies that interfering with something that's working well could potentially make it worse.

Here's a breakdown of the meaning:

* Let: Allow, permit

* Well enough: Adequate, satisfactory, good enough

* Alone: Unchanged, untouched

Essentially, it's a warning against unnecessary meddling or tampering with something that is functional and acceptable.

Here are some examples of how the phrase is used:

* "The old car runs perfectly fine. I say, let well enough alone and don't try to fix it."

* "I know you want to repaint the house, but it's not really necessary. Let well enough alone."

* "My relationship with my boss is good as it is. I'd rather let well enough alone than risk upsetting the balance."

The phrase suggests that sometimes it's wiser to accept things as they are, rather than trying to make them perfect, especially if there is a risk of making them worse.