You Are Worth About 3 Dollars Worth

I'd Like The [cosmos] Series To Be So Visually Stimulating That Somebody Who Isn't Even Interested In The Concepts Will Just Watch For The Effects. And I'd Like People Who Are Prepared To Do Some Thinking To Be Really Stimulated.

Where We Have Strong Emotions, We're Liable To Fool Ourselves.

Avoidable Human Misery Is More Often Caused Not So Much By Stupidity As By Ignorance, Particularly Our Ignorance About Ourselves.

If The Greenhouse Effect Is A Blanket In Which We Wrap Ourselves To Keep Warm, Nuclear Winter Kicks The Blanket Off.

A Blade Of Grass Is A Commonplace On Earth; It Would Be A Miracle On Mars. Our Descendants On Mars Will Know The Value Of A Patch Of Green. And If A Blade Of Grass Is Priceless, What Is The Value Of A Human Being?