Authors:

Owning the intellectual property is like owning land: You need to keep investing in it again and again to get a payoff; you can't simply sit back and collect rent.

"Intellectual Value" by Esther Dyson, www.wired.com. July 1, 1995.
Owning the intellectual property is like owning land: You need to keep investing in it again and again to get a payoff; you can't simply sit back and collect rent.