Any Smoothly Functioning Technology Will Have The

Human Judges Can Show Mercy. But Against The Laws Of Nature, There Is No Appeal.

One Orbit, With A Radius Of 42,000 Kilometers, Has A Period Of Exactly 24 Hours. A Body In Such An Orbit, If Its Plane Coincided With That Of The Earth's Equator, Would Revolve With The Earth And Would Thus Be Stationary Above The Same Spot On The Planet. It Would Remain Fixed In The Sky Of A Whole Hemisphere ... [to] Provide Coverage To Half The Globe, And For A World Service Three Would Be Required, Though More Could Be Readily Utilized. (1945) [predidicting Geosynchronous Communication Satellites]

All Human Plans [are] Subject To Ruthless Revision By Nature, Or Fate, Or Whatever One Preferred To Call The Powers Behind The Universe.

There Is Hopeful Symbolism In The Fact That Flags Do Not Wave In A Vacuum.

All Explorers Are Seeking Something They Have Lost. It Is Seldom That They Find It, And More Seldom Still That The Attainment Brings Them Greater Happiness Than The Quest.