Little Johnny and the professor

One day a Professor
was talking about marriage in d class...
Professor :
What kind of Wife would you like Johnny?
Johnny : I would want a wife like the moon...
Professor : Wow !! what a choice...
So you want her to be Cool & Calm like the moon? 
Johnny : No, no...
Professor : oh so u want her to be Round and white? 🌕
Johny: No, no...
Professor : Oh, so u want her to be Fair and Beautiful like d moon? 🌝
Johny: No, no...
I want her to be Exactly like
Just Arrive at Night
and Disappear in the Morning;)
Professor Behosh