In our time, in particular, there exists another form of ownership which is becoming no less important than land: the possession of know-how, technology and skill. The wealth of the industrialized nations is based much more on this kind of ownership than on natural resources. Mention has just been made of the fact that people work with each other, sharing in a “community of work” which embraces ever widening circles. A person who produces something other than for his own use generally does so in