No Trilogy Should Have More Than Four

What Was More, They Had Taken The First Step Toward Genuine Friendship. They Had Exchanged Vulnerabilities.

We Stand Now At The Turning Point Between Two Eras. Behind Us Is A Past To Which We Can Never Return... The Coming Of The Rocket Brought To An End A Million Years Of Isolation... The Childhood Of Our Race Was Over And History As We Know It Began.

I Have Never Grown Up, But I Will Never Stop Growing.

The Dinosaurs Disappeared Because They Could Not Adapt To Their Changing Environment. We Shall Disappear If We Cannot Adapt To An Environment That Now Contains Spaceships, Computers - And Thermonuclear Weapons.

Somewhere In Me Is A Curiosity Sensor. I Want To Know What's Over The Next Hill. You Know, People Can Live Longer Without Food Than Without Information. Without Information, You'd Go Crazy.