“We only have to look at ourselves to see how intelligent life might develop into something we wouldn’t want to meet,”

“It has yet to be proven that intelligence has any survival value.”

“Perhaps we've never been visited by aliens because they have looked upon Earth and decided there's no sign of intelligen...”

“In the make-up of human beings, intelligence counts for more than our hands, and that is our true strength.”

“Intelligence is really a kind of taste: taste in ideas.”