When these resources are degraded or polluted, then there are fewer of them for the rest of us, and then we start competing for them and eventually as we compete, there are those of us, who have the capacity, who have the ability to be the controllers, to decide who accesses them, how much they access, and eventually there is a conflict. Those who feel marginalized, those who feel excluded, eventually react in an effort to get their own justice, and we have conflict.
Noam Chomsky
The beam in our own eye is harder to detect, although - or more accurately because - to detect it, and remove it, is vastly more important on elementary moral grounds, and commonly more important in terms of direct human consequences as well. Intellectuals have historically played a critical function in performing these tasks, and [Ivan] Illich is right to observe that claims to scientific expertise and special knowledge are often used as a device.
