"Letter to dad" joke

> Dear Dad,
>
> Hi, How are you and Mom? $chool i$ really great. I am making lot$ of
> friend$
> and $tudying very hard. With all my $tuff, I $imply can't think of
> anything
> I need, $o if you would like, you can ju$t $end me a card, a$ I would love
> to hear from you.
> Love,
> Your $on
The Reply:
>
> Dear Son,
>
> I kNOw that astroNOmy, ecoNOmics, and oceaNOgraphy are eNOugh to keep even
> an hoNOr student busy. Do NOt forget that the pursuit of kNOwledge is a
> NOble task, and you can never study eNOugh.
> Lovingly
> Mom & Dad