So, the dirt and biting critters beneath can remain hidden.

It's far better to wait to turn stones over in a rushing river

So, the water's current can sweep such quickly out of sight.
 

Sometimes it's best to not mark what's wrong in an essay

So, the red-pen of correction does not look like bloody stabs.

It's far better to use a blue or green pen to circle positives,

So, the writer can feel good about what and how they wrote.
 

Of stones and marking essays,

Sometimes knowing what's wrong is right,

Of stones and marking essays,

But most times its really best if wrong

Never sees the day's light.