“Fear is the mind-killer.”

“Try looking into that place where you dare not look! You'll find me there, staring out at you!”

“There is no escapewe pay for the violence of our ancestors.”

“The man without emotions is the one to fear.”

“Whether a thought is spoken or not it is a real thing and it has power," Tuek said. "You might find the line between life and death among the Fremen to be too sharp and quick.”

“You have a nicety of awareness of the difference between a blade's edge and its tip.”

“Cutting off fundamental, curiosity-driven science is like eating the seed corn. We may have a little more to eat next winter but what will we plant so we and our children will have enough to get th...”

“Research is the process of going up alleys to see if they are blind.”

“The effort to understand the universe is one of the very few things that lifts human life a little above the level of farce, and gives it some of the grace of tragedy. ”

“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.”