We've been in a recession, by any common sense definition, because if you look at the American public, they've got 20 billion - 20 trillion, I should say, worth of residential homes.
Common sense invents and constructs no less than its own field than science does in its domain. It is, however, in the nature of common sense not to be aware of this situation.
We assume a common sense as the necessary condition of the universal communicability of our knowledge, which is presupposed in every logic and every principle of knowledge that is not one of skepticism.