“Don't you understand that we need to be childish in order to understand? Only a child sees things with perfect clarity, because it hasn't developed all those filters which prevent us from seeing things that we don't expect to see.”

“But the reason I call myself by my childhood name is to remind myself that a scientist must also be absolutely like a child. If he sees a thing, he must say that he sees it, whether it was what he thought he was going to see or not. See first, think later, then test. But always see first. Otherwise you will only see what you were expecting.”

“I'm a scientist and I know what constitutes proof. But the reason I call myself by my childhood name is to remind myself that a scientist must also be absolutely like a child. If he sees a thing, he must say that he sees it, whether it was what he thought he was going to see or not. See first, think later, then test. But always see first. Otherwise you will only see what you were expecting. Most scientists forget that.”

“Hey, this is terrific!" he said. "Someone down there is trying to kill us!""Terrific," said Arthur."But don't you see what this means?""Yes. We are going to die.""Yes, but apart from that.""Apart from that?!""It means we must be on to something!""How soon can we get off it?”

“See first, think later, then test. But always see first. Otherwise you will only see what you were expecting. Most scientists forget that.”

“We notice things that don't work. We don't notice things that do. We notice computers, we don't notice pennies. We notice e-book readers, we don't notice books.”

“They were a double pair of Joo Janta 200 Super-Chromatic Peril Sensitive Sunglasses, which had been specifically designed to help people develop a relaxed attitude to danger. At the first hint of trouble they turn totally black and thus prevent you from seeing anything that might alarm you.”