It's not hidden to me; it's hidden to you.
Firstly, life, liberty and the pursuit of happiness aren't mentioned in the Constitution; they're mentioned in the Declaration Of Independence. (One down.)
Secondly, if your happiness involves beating me over the nose with a tire iron, you don't get to do it. You'll get yourself hurt and you'll go to jail. If your happiness involves having sex with my underage niece, you don't get to do it. You'll get yourself severely hurt and you'll go to jail. If your happiness involves stealing my car for a joyride, you don't get to do it. If you're caught, you'll go to jail.
And, just to be clear about how the Founding Fathers regarded "morals laws": when Thomas Jefferson was alive, if your happiness involved committing sodomy, he thought it proper to have you castrated. (Two down.)
So, as I said, your pursuit of happiness isn't mentioned in the Constitution and it isn't necessarily a right, no matter how much you'd like it to be.
As long as I cause no injury to the next person,
I intend to live as if it were. So far, so good.