It's Perilous And Foolhardy For The Average

Since, In The Long Run, Every Planetary Society Will Be Endangered By Impacts From Space, Every Surviving Civilization Is Obliged To Become Spacefaring — Not Because Of Exploratory Or Romantic Zeal, But For The Most Practical Reason Imaginable: Staying Alive.

If We Ruin The Earth, There Is No Place Else To Go

In The Fabric Of Space And In The Nature Of Matter, As In A Great Work Of Art, There Is, Written Small, The Artist's Signature.

We Can Judge Our Progress By The Courage Of Our Questions And The Depth Of Our Answers, Our Willingness To Embrace What Is True Rather Than What Feels Good.

The Earth Is The Only World Known So Far To Harbor Life. There Is Nowhere Else, At Least In The Near Future, To Which Our Species Could Migrate. Visit, Yes. Settle, Not Yet. Like It Or Not, For The Moment The Earth Is Where We Make Our Stand. It Has Been Said That Astronomy Is A Humbling And Character-building Experience..... To Me, It Underscores Our Responsibility To Deal More Kindly With One Another, And To Preserve And Cherish The Pale Blue Dot, The Only Home We've Ever Known.