If we do discover more than one type of life on Earth, we can be fairly certain that the universe is teeming with it, for it would be inconceivable that life started twice here but never on all the other earth-like planets.
“I don't like psychiatry. I don't believe it works. I believe psychiatrists are neurotic or psychotic, for the most part.”
“I'm working harder now than ever before. I couldn't turn down the BBC job because I've never been offered the opportunity of killing three or four people on screen before!”