"When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong."
"I'm sure the universe is full of intelligent life. It's just been too intelligent to come here."
"I don’t believe in astrology; I’m a Sagittarius and we’re skeptical."
"There is no reason to assume that the universe has the slightest interest in intelligence—or even in life. Both may be random accidental by-products of its operations like the beautiful patterns on a butterfly's wings. The insect would fly just as well without them."
"The only way to discover the limits of the possible is to go beyond them into the impossible."
"Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying."