“But being rational about it didn't cure it.”

“I didn't know that empty rationalization was part of your programming," said Ram. "We would not be fit companions for human beings without it.”

“Some things in life could not be solved or even contemplated by a rational mind. Roger’s mind, however, had ceased being anywhere near rational about half a bottle of Grand Marnier ago.”

“Afterward he remembered only the feeling that he was about to leave somewhere small and rational - a place that made sense - for somewhere huge and old that didn't.”

“Rationalism is the idea that we can ever understand anything about the state of being. It's a deathtrip. It always has been. . . . And if rationalism is a deathtrip, then irrationalism might very well be a lifetrip . . . at least until it proves otherwise.”

“It affects your mind so that you cannot think clearly, or make rational decisions about your own well-being.”