Get Me A Broom. I'll Sweep My

Man Is Not Made For Space. But With The Help Of Biologists And Medical Doctors, He Can Be Prepared And Accommodated.

Nature Does Not Know Extinction; All It Knows Is Transformation. ... Everything Science Has Taught Me-and Continues To Teach Me-strengthens My Belief In The Continuity Of Our Spiritual Existence After Death. Nothing Disappears Without A Trace.

The First Men Who Set Out For Mars Had Better Make Sure They Leave Everything At Home In Apple-pie Order. They Won't Get Back To Earth For More Than Two And A Half Years. The Difficulties Of A Trip To Mars Are Formidable. . . . What Curious Information Will These First Explorers Carry Back From Mars? Nobody Knows-and Its Extremely Doubtful That Anyone Now Living Will Ever Know. All That Can Be Said With Certainty Today Is This: The Trip Will Be Made, And Will Be Made . . . Someday.

Conquering The Universe One Has To Solve Two Problems: Gravity And Red Tape. We Could Have Mastered Gravity.

All One Can Really Leave One's Children Is What's Inside Their Heads. Education, In Other Words, And Not Earthly Possessions, Is The Ultimate Legacy, The Only Thing That Cannot Be Taken Away.