“Scientific method, hell! No wonder the Galaxy was going to pot.”

“Scientific truth is beyond loyalty and disloyalty.”

“Don't you see? It's Galaxy-wide. It's a worship of the past. It's a deterioration - a stagnation!”

“Galaxy! When can a man know he is not a puppet? How can a man know he is not a puppet?”

“If a conclusion is not poetically balanced, it cannot be scientifically true.”

“All knowledge is one. When a light brightens and illuminates a corner of a room, it adds to the general illumination of the entire room. Over and over again, scientific discoveries have provided answers to problems that had no apparent connection with the phenomena that gave rise to the discovery.”

“I don't believe in an afterlife, so I don't have to spend my whole life fearing hell, or fearing heaven even more. For whatever the tortures of hell, I think the boredom of heaven would be even worse.”