Barry Commoner

When you fully understand the situation, it is worse than you think.

No action is without its side effects.

Everything is connected to everything else. Everything must go somewhere. Nature knows best. There is no such thing as a free lunch. If you don't put something in the ecology, it's not there.

Nothing ever goes away.

Sooner or later, wittingly or unwittingly, we must pay for every intrusion on the natural environment.

If you can see the light at the end of the tunnel you are looking the wrong way.