Teaching, not Listening

There are
Hearing aids
We share
With who saids

Thinking
Needs an inventor
Instructing
An instigator

Is that 
A teacher
Oh what
A stretcher

Of lies
And truths
Which he ties
Like mental forsooths

Then grades
Every student
But parades
Only the prudent

So 
What you hear
Please know
Is not of fear

For learning
Is ephemeral
A temporal yearning
For the eternal