I have experimental evidence that time travel is not possible.
The human race shouldn't have all its eggs in one basket, or on one planet. Let's hope we can avoid dropping the basket until we have spread the load.
The human failing I would most like to correct is aggression.
The human race does not have a very good record of intelligent behavior.
The Simpsons is the best thing on American television.
There is nothing bigger or older than the universe.