Arguments from authority carry little weight — “authorities” have made mistakes in the past. They will do so again in the future. Perhaps a better wa… - Carl Sagan

You’d be surprised how rarely something like that happens. In the long run, the aggressive civilizations destroy themselves, almost always. It’s their nature. They can’t help it. In such a case, our job would be to leave them alone. To make sure that no one bothers them. To let them work out their destiny.

President Ronald Reagan, who spent World War II in Hollywood, vividly described his own role in liberating Nazi concentration camp victims. Living in the film world, he apparently confused a movie he had seen with a reality he had not. On many occasions in his Presidential campaigns, Mr. Reagan told an epic story of World War II courage and sacrifice, an inspiration for all of us. Only it never happened; it was the plot of the movie A Wing and a Prayer — that made quite an impression on me, too, when I saw it at age 9. Many other instances of this sort can be found in Reagan's public statements. It is not hard to imagine serious public dangers emerging out of instances in which political, military, scientific or religious leaders are unable to distinguish fact from vivid fiction.

We grow up in isolation. Only slowly do we teach ourselves the Cosmos.