The Law Of Conservation Of Energy Tells

There Are No Happy Endings In History, Only Crisis Points That Pass.

There Was This Superstitious Fear On The Part Of The Pygmies Of The Present For The Relics Of The Giants Of The Past.

Democracy Cannot Survive Overpopulation.

At Two-tenths The Speed Of Light, Dust And Atoms Might Not Do Significant Damage Even In A Voyage Of 40 Years, But The Faster You Go, The Worse It Is--space Begins To Become Abrasive. When You Begin To Approach The Speed Of Light, Hydrogen Atoms Become Cosmic-ray Particles, And They Will Fry The Crew. ...so 60,000 Kilometers Per Second May Be The Practical Speed Limit For Space Travel.

The Most Exciting Phrase To Hear In Science, The One That Heralds New Discoveries, Is Not 'eureka!' But 'that's Funny...'