Who is credited for the following quote: "There are two different kinds of people in the world; those who fini

Question

The quote was on the elevators of the hospital. I didn't get a chance to write down the author of the quote.

The entire quote is "There are two different kinds of people in the world; those who finish what they start and.." That's the quote. Cute. Who said it?

Answer 1

Actually, there are three kinds of people in the world;  Those who are good at math, and those who aren't.  

Or, there are 10 kinds of people in this world; Those who think in binary terms, and those who don't.

Or, there are two kinds of people in this world; those who put people into one of two categories, and those who don't.

Answer 2

Lisa Carey??

Answer 3

Robert Benchley

Answer 4

There are two kinds of people, those who finish what they start and so on...

      -- Robert Byrne