I Am An Optimist. Anyone Interested In

Now I Understand,” Said The Last Man.

We Cannot Predict The New Forces, Powers, And Discoveries That Will Be Disclosed To Us When We Reach The Other Planets And Set Up New Laboratories In Space. They Are As Much Beyond Our Vision Today As Fire Or Electricity Would Be Beyond The Imagination Of A Fish.

Those Wanderers Must Have Looked On Earth, Circling Safely In The Narrow Zone Between Fire And Ice, And Must Have Guessed That It Was The Favourite Of The Sun's Children.

The Moon Is The First Milestone On The Road To The Stars.

The Numbers Of Distinct Human Societies Or Nations, When Our Race Is Twice Its Present Age, May Be Far Greater Than The Total Number Of All The Men Who Have Ever Lived Up To The Present Time.