$ome things never change, you kNOw?

Dear Dad:
$chool is great. I am making lot$ of friends and $tudying very hard. With all my $tuff, I $imply can’t think of anything I need. $o if you would like, you can $end me a card, a$ I’d love to hear from you.
Love, your $on

Dear Son:
I kNOw that astroNOmy, ecoNOmics, and oceaNOgraphy are eNOugh to keep even an HoNOur student busy. Do NOt forget that the pursuit of kNOwledge is a NOble task, and you can never study eNOugh.
Love, Dad