“If I have an idea and give the idea away it is not gone, but I still have it! This experience does not conform to the arithmetic of things.
Let us examine this experience from the point of view of exchange. If I have an apple and you have an apple and we exchange apples — then you have an apple and I have an apple. But if I have the idea that the apple is red and you have the idea that the apple is small and we exchange ideas, then you have two ideas and I have two ideas. It is quite obvious, therefore, that the laws governing thoughts or ideas are different from the laws governing things. If I have an idea and give it away, I still have it to give again, and if I give the idea away again and again, I still have the idea left.”
— George Bernard Shaw