If you have an apple and I have an apple and we exchange these 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.
What It Means
This is a placeholder explanation generated by the low-overhead model. It interprets "If you have an apple and I have an apple and we exchange these 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." in the context of "George Bernard Shaw never said these words, but Charles F. Brannan did.http://quoteinvestigator.com/2011/12/13/swap-ideas/" to mean that wisdom is timeless.
About George Bernard Shaw