Swan: Yes, which would mean a 50 percent decline over fifty years. We’re actually seeing something a little steeper than that.

The emergence of intelligence, I am convinced, tends to unbalance the ecology. In other words, intelligence is the great polluter. It is not until a creature begins to manage its environment that nature is thrown into disorder.

Clifford D. Simak, Shakespeare’s Planet

It is a curious situation that the sea, from which life first arose, should now be threatened by the activities of one form of that life. But the sea, though changed in a sinister way, will continue to exist; the threat is rather to life itself.

Rachel Carson

It is blasphemy to separate oneself from the earth and look down on it like a god. It is more than blasphemy; it is dangerous. We can never be gods, after all — but we can become something less than human with frightening ease.

N.K. Jemisin, The Hundred Thousand Kingdoms

I bought a wastepaper basket and carried it home in a paper bag. And when I got home, I put the paper bag in the wastepaper basket.

Lily Tomlin

In New England they once thought blackbirds useless, and mischievous to the corn. They made efforts to destroy them. The consequence was, the blackbirds were diminished; but a kind of worm, which devoured their grass, and which the blackbirds used to feed on, increased prodigiously; then, finding their loss in grass much greater than their saving in corn, they wished again for their blackbirds.

Benjamin Franklin