Son’s Letter

Dear Dad,

$chool i$ really great.  I am making lot$ of friend$ and $tudying very hard.  With all my $tuff, I can’t think of anything I need, $o if you would like, you can just $end me a card, a$ I would love to hear from you.

Love,

Your $on

Dad’s Reply

Dear Son,

I kNOw that astroNOmy, ecoNOmics, and oceaNOgraphy are eNOugh to keep an hoNOr student busy.  Do Not forget that the pursuit of kNOwledge is a NOble task, and you can never study eNOugh.

Dad

Source http://ahajokes.com/hinting.html