Vibrations & Harmony

If you have bread, and if I have a euro, if I buy the bread, I will have the bread and you will have the euro and you see in this exchange a balance, that is to say : a Has the euro, B a a loaf of bread. And in the other case B has the bread and the euro. Therefore, it is a perfect balance. But, if you have a sonnet of Verlaine, or the theorem of Pythagoras, and that I have nothing, and if you to me teach, at the end of this exchange-the, I have the sonnet and the theorem, but you have guards. In the first case, there is a balance, it is the goods, in the second there is an increase, it is the culture.
Michel Serres