If We Offer Too Much Silent Assent

Eratosthenes's Only Tools Were Sticks, Eyes, Feet, And Brains; Plus A Zest For Experiment. With Those Tools He Correctly Deduced The Circumference Of The Earth, To High Precision, With An Error Of Only A Few Percent. That's Pretty Good Figuring For 2200 Years Ago.

I Worry That, Especially As The Millennium Edges Nearer, Pseudo-science And Superstition Will Seem Year By Year More Tempting, The Siren Song Of Unreason More Sonorous And Attractive.

A Tiny Blue Dot Set In A Sunbeam. Here It Is. That's Where We Live. That's Home. We Humans Are One Species And This Is Our World. It Is Our Responsibility To Cherish It. Of All The Worlds In Our Solar System, The Only One So Far As We Know, Graced By Life.

Whenever Our Ethnic Or National Prejudices Are Aroused, In Times Of Scarcity, During Challenges To National Self Esteem Or Nerve, When We Agonize About Our Diminished Cosmic Place And Purpose, Or When Fanaticism Is Bubbling Up Around Us - Then, Habits Of Thought Familiar From Ages Past Reach For The Controls.

By Looking Far Out Into Space We Are Also Looking Far Back Into Time, Back Toward The Horizon Of The Universe, Back Toward The Epoch Of The Big Bang.