Love is often nothing but a favorable exchange between two people who get the most of what they can expect considering their value on the personality market.

Love consists in giving without getting in return in giving what is not owed what is not due the other. That's why true love is never based as associations for utility or pleasure are on a fair exchange.

The cost of a thing is the amount of what I will call life which is required to be exchanged for it immediately or in the long run.

The price of anything is the amount of life you exchange for it.

Knowledge is and will be produced in order to be sold it is and will be consumed in order to be valorised in a new production: in both cases the goal is exchange.

A number of scientists with greatly different backgrounds can come up with completely different assessments. The discussions or controversies are endless. Once a year we try to bring the most important discoverers together to exchange their experiences and knowledge.

The intercourse between the Mediterranean and the North or between the Atlantic and Central Europe was never purely economic or political it also meant the exchange of knowledge and ideas and the influence of social institutions and artistic and literary forms.

It's clear that people are going to download media files and they're going to talk to each other and they're going to exchange information and knowledge and so forth. So this system logic is basically what you bounce off of.

I wasn't privy to all of the intelligence that was coming in about Guatemala but I did see the traffic that was coming in from Guatemala City because it was very relevant to me and of course I exchanged what I had with the chief of station in Guatemala City.

Judy we think that since the 11th of September 2001 we've faced a similar heightened threat level. And we've been enhancing both the exchange of intelligence and security information and the assessment of that information because that's the crucial element.