“The true delight is in the finding out rather than in the knowing.”

“The Imperial forces must keep their hands off, but they find that they can do much even so. Each sector is encouraged to be suspicious of its neighbors. Within each sector, economic and social classes are encouraged to wage a kind of war with each other. The result is that all over Trantor it is impossible for the people to take united action. Everywhere, the people would rather fight each other than make a common stand against the central tyranny and the Empire rules without having to exert force.”

“Nothing has to be true, but everything has to sound true.”

“And just how did you arrive at that remarkable conclusion, Mr. Mayor?""In a rather simple way. It merely required the use of that much-neglected commodity -- common sense. You see, there is a branch of human knowledge known as symbolic logic, which can be used to prune away all sorts of clogging deadwood that clutters up human language.""What about it?" said Fulham."I applied it. Among other things, I applied it to this document here. I didn't really need to for myself because I knew what it was all about, but I think I can explain it more easily to five physical scientists by symbols rather than by words."Hardin removed a few sheets of paper from the pad under his arm and spread them out. "I didn't do this myself, by the way," he said. "Muller Holk of the Division of Logic has his name signed to the analyses, as you can see."Pirenne leaned over the table to get a better view and Hardin continued: "The message from Anacreon was a simple problem, naturally, for the men who wrote it were men of action rather than men of words. It boils down easily and straightforwardly to the unqualified statement, when in symbols is what you see, and which in words, roughly translated is, 'You give us what we want in a week, or we take it by force.'"There was silence as the five members of the Board ran down the line of symbols, and then Pirenne sat down and coughed uneasily.Hardin said, "No loophole, is there, Dr. Pirenne?""Doesn't seem to be.”

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

“Well, he used to say that only a lie that wasn't ashamed of itself could possibly succeed. He also said that nothing had to be true, but everything had to sound true”

“It is always useful, you see, to subject the past life of reform politicians to rather inquisitive research.”