If you have an apple and I have an apple and we exchange apples then you and I will still each have one apple. But if you have an idea and I have an idea and we exchange these ideas, then each of us will have two ideas.
George Bernard Shaw, 07/26/1856 - 11/02/1950 Erse dramatist, author and Nobel Prize Laureate
Which painting in the National Gallery would I save if there was a fire? The one nearest the door of course.