If The House Is To Be Demolished

How Inappropriate To Call This Planet Earth When It Is Quite Clearly Ocean.

The Earth Would Only Have To Move A Few Million Kilometers Sunward-or Starward-for The Delicate Balance Of Climate To Be Destroyed. The Antarctic Icecap Would Melt And Flood All Low-lying Land; Or The Oceans Would Freeze And The Whole World Would Be Locked In Eternal Winter. Just A Nudge In Either Direction Would Be Enough.

Good Morning, Dr. Chandra. This Is Hal. I Am Ready For My First Lesson.

If Man Survives For As Long As The Least Successful Of The Dinosaurs-those Creatures Whom We Often Deride As Nature's Failures-then We May Be Certain Of This: For All But A Vanishingly Brief Instant Near The Dawn Of History, The Word 'ship' Will Mean- 'spaceship.'

1. When A Distinguished But Elderly Scientist States That Something Is Possible, He Is Almost Certainly Right. When He States That Something Is Impossible, He Is Very Probably Wrong. 2. The Only Way Of Discovering The Limits Of The Possible Is To Venture A Little Way Past Them Into The Impossible. 3. Any Sufficiently Advanced Technology Is Indistinguishable From Magic.