Man Is The Matter Of The Cosmos,

Scientists Make Mistakes. Accordingly, It Is The Job Of The Scientist To Recognize Our Weakness, To Examine The Widest Range Of Opinions, To Be Ruthlessly Self-critical. Science Is A Collective Enterprise With The Error-correction Machinery Often Running Smoothly.

The Universe Seems Neither Benign Nor Hostile, Merely Indifferent.

The Surface Of The Earth Is The Shore Of The Cosmic Ocean. From It We Have Learned Most Of What We Know. Recently, We Have Waded A Little Out To Sea, Enough To Dampen Our Toes Or, At Most, Wet Our Ankles. The Water Seems Inviting. The Ocean Calls.

In The Vastness Of The Cosmos There Must Be Other Civilizations Far Older And More Advanced Than Ours.

After The Earth Dies, Some 5 Billion Years From Now, After It's Burned To A Crisp, Or Even Swallowed By The Sun, There Will Be Other Worlds And Stars And Galaxies Coming Into Being - And They Will Know Nothing Of A Place Once Called Earth.