Just as with cars, it's critical to know the fuel efficiency of black holes.

Just as with cars, it's critical to know the fuel efficiency of black holes.

I do not understand those who take little or no interest in the subject of religion. If religion embodies a truth, it is certainly the most important truth of human existence. If it is largely error, then it is one of monumentally tragic proportions—and should be vigorously opposed.

Asthma doesn't seem to bother me any more unless I'm around cigars or dogs. The thing that would bother me most would be a dog smoking a cigar.

Millions of Germans had absolute faith in Hitler. Millions of Russians had faith in Stalin. Millions of Chinese had faith in Mao. Billions have had faith in imaginary gods.

This is The Tonight Show. I can't tell you too much about it, other than the fact that this program is going to go on forever.

Ours is a government of checks and balances. The Mafia and crooked businessmen make out checks, and the politicians and other compromised officials improve their bank balances.