Is a Brother off the track?
Try the Square;

Try it well on every side.
Nothing draws a craftsman back
Like the Square when well applied.
Try the Square.

Is he crooked, is he frail?
Try the Square.

Try it early, try it late;
When all other efforts fail,
Try the Square to make him straight
Try the Square.

Does he still persist in wrong?
Try the Square.

Loves he darkness more than light?
Try it thorough, try it long.
Try the Square to make him right
Try the Square.

Fails the Square to bring him in?
Try the Square.

Be not sparing of the pains;
While there’s any work to do,
While a crook or knot remains
Try the Square.