Look Up At The Stars, Not Down

I Have Sold More Books On Physics Than Madonna Has On Sex.

I May Contradict Myself, But At Least I Don't Contradict Myself.

Doing A Job Right The First Time Gets The Job Done. Doing The Job Wrong Fourteen Times Gives You Job Security.

The Real Challenge Is To Work Out What Aliens Might Actually Be Like.

There Is A Very Real Danger That We Will Kill Everything On This Planet Now That We Have The Technological Power To Do So.