A celibate clergy is an especially good idea, because it tends to suppress any hereditary propensity toward fanaticism.
Carl SaganThe brain is like a muscle. When it is in use we feel very good. Understanding is joyous.
Carl SaganEvery thinking person fears nuclear war, and every technological state plans for it. Everyone knows it is madness, and every nation has an excuse
Carl SaganIf we can't think for ourselves, if we're unwilling to question authority, then we're just putty in the hands of those in power. But if the citizens are educated and form their own opinions, then those in power work for us. In every country, we should be teaching our children the scientific method and the reasons for a Bill of Rights. With it comes a certain decency, humility and community spirit. In the demon-haunted world that we inhabit by virtue of being human, this may be all that stands between us and the enveloping darkness.
Carl Sagan