Decisions are always made with insufficient information. If you really knew what was going on, the decision would make itself. - Jack McDevitt

One should always be skeptical. That's always been our problem. We have too many believers.
"Believers in what?"
"In everything."

Our generation faces only one danger, that we might say to ourselves this is not our problem, and that we will pass it off to the distant future. That we might shrug and say to ourselves that a thousand years is a long time. That we will become complacent and conclude that this problem will take care of itself.
But I say to you, we should take no satisfaction in the fact that we ourselves are in no physical danger. This is a hazard to our world, to everything we hope to pass on to future generations. And it is clear that we should act now, while we have the time.

Tides are like politics. They come and go with a great deal of fuss and noise, but inevitably they leave the beach just as they found it. On those few occasions when major change does occur, it is rarely good news.