“Two possibilities exist: either we are alone in the Universe or we are not. Both are equally terrifying.”

“I'm sure the universe is full of intelligent life. It's just been too intelligent to come here.”

“A faith that cannot survive collision with the truth is not worth many regrets.”

“But please remember: this is only a work of fiction. The truth, as always, will be far stranger.”

“Before you become too entranced with gorgeous gadgets and mesmerizing video displays, let me remind you that information is not knowledge, knowledge is not wisdom, and wisdom is not foresight. Each...”

“...a well-stocked mind is safe from boredom.”

“I do not know what I may appear to the world, but to myself I seem to have been only like a boy playing on the sea-shore, and diverting myself in now and then finding a smoother pebble or a prettie...”

“To know the history of science is to recognize the mortality of any claim to universal truth. ”

“The scientist only imposes two things, namely truth and sincerity, imposes them upon himself and upon other scientists.”

“We realized that among us, among all the races, we had a staggering fund of knowledge and of techniques - that working together, by putting together all this knowledge and capability, we could arri...”

“It seems to me, Golan, that the advance of civilization is nothing but an exercise in the limiting of privacy.”

“Science fiction at its best should be crazy and dangerous, not sane and safe.”