Intelligent life on a planet comes of age when it first works out the reason for its own existence.

If this is the only planet on which not only life, but intelligent life, has arisen, that would be very unusual.

People believe the only alternative to randomness is intelligent design.

…only in the few universes that are like ours would intelligent beings develop and ask the question: “Why is the universe the way we see it?” The answer is then simple: If it had been any different, we would not be here!

There are only two races on this planet -- the intelligent and the stupid.

I won't eat anything that has intelligent life, but I'd gladly eat a network executive or a politician.