People Who Boast About Their I.q. Are

If We Can Avoid Disaster For The Next Two Centuries, Our Species Should Be Safe As We Spread Into Space. If We Are The Only Intellegent Beings In The Galaxy We Should Make Sure We Survive And Continue. . . . Our Only Chance Of Long-term Survival Is Not To Remain Inward Looking On Planet Earth But To Spread Out Into Space. We Have Made Remarkable Progress In The Last Hundred Years. But If We Want To Continue Beyond The Next Hundred Years, Our Future Is In Space.

My Expectations Were Reduced To Zero When I Was 21. Everything Since Then Has Been A Bonus.

Not Only That God Does Play Dice, But That He Sometimes Confuses Us By Throwing Them Where They Can't Be Seen.

The Human Race Does Not Have A Very Good Record Of Intelligent Behavior.

A Theory Is A Good Theory If It Satisfies Two Requirements: It Must Accurately Describe A Large Class Of Observations On The Basis Of A Model That Contains Only A Few Arbitrary Elements, And It Must Make Definite Predictions About The Results Of Future Observations.