Success Is A Relative Term. It Brings

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

There Are Too Many Accidents That Can Befall Life On A Single Planet.

Time Travel Used To Be Thought Of As Just Science Fiction, But Einstein's General Theory Of Relativity Allows For The Possibility That We Could Warp Space-time So Much That You Could Go Off In A Rocket And Return Before You Set Out.

When I Get To Heaven I'm Gonna Find The Guy In Charge Of The Weather And Kick His Rear.

If It [the Universe] Was Expanding Fairly Slowly, The Force Of Gravity Would Cause It Eventually To Stop Expanding And Then To Start Contracting. However, If It Was Expanding At More Than A Certain Critical Rate, Gravity Would Never Be Strong Enough To Stop It, And The Universe Would Continue To Expand Forever.