New York City Lights = Equation that Needs No Proof Statement.

Park Avenue +

+ Dusk + Clear Sky = Pretty. 

Breaking news: the above equation may hold up better than Einstein's theory of relativity and Newton's three laws of motion combined.  However, further hypothesis testing is currently underway, the results of which will be recorded in relevant scientific journals.  But only after the double-blind testing phase is complete.  Tune in for updates.