"Sometimes it is a kindness to let someone be wrong."

So said I to my niece one sunny afternoon when she was yelling at her friend Zach because he insisted that 14 immediately follows 7.

He was on the point of tears and insisted he was right.
He was wrong.
But he was 4.

He hadn't yet grown up enough to realize, indeed, 14 does not immediately follow 7.  Yelling at him wouldn't do any good, and it would be kinder to let him sit in his fallacy until he was ready to hear the truth.

Thus I tried explaining to my niece.  And as soon as the words were out of my mouth, I realized I needed to hear them far more than she.