Joke: Letter From Son To Dad

Dear Dad,

$chool i$ really great. I am making lot$ of friend$ and $tudying very hard. 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.

Love,
Dad

Lol!

Did you get the message of the joke?