I've exchanged messages and photos of an explicit nature with about six women over the last three years. For the most part these communications took place before my marriage though some have sadly took place after. To be clear I have never met any of these women or had physical relationships at any time.

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.

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.

Facebook is at the forefront. It's the company that can fundamentally change the way information is being exchanged and processed. It can be the basis for artificial intelligence to develop over time.

The first of all commodities to be exchanged is labour and the freedom of man consists only in the exercise of the right to determine for himself in what manner his labour shall be employed and how he will dispose of its products.