"We’ve become a race of engineers. What we never seem to understand is that after it’s time to railroad, there’s time to build a beautiful railroad. The state of the art has advanced enough; we can afford to pay a small penalty in efficiency."

“Religion and science don’t mix well, as science likes to observe and draw conclusions—to learn, in other words—and religion cares only about learning the Bible, the Torah, the Koran, etc. They don’t need to learn about this world, because they already know. A good way to describe a wasted life, as far as I’m concerned. Religious people already know things, with no more proof than some words in an old book. In short, they’re crazy.”

“But now she was fifty-seven, and suddenly ancient. Soon she would be dead. Dead. You can’t get any more ancient than that.”

“She was already putting her distance between herself and this woman she would kill. She was becoming an object, something she was going to do something unpleasant to; not a person with a right to live.”

“You've got to watch yourself when you get as old as I am. You have to try new things, sometimes for no better reason than that they’re new. Otherwise you rust.”

“I am vehemently anti-religion. That is, organized religion. I despise them all. I try to despise them equally, but lately Islam has shot to the top of my hate list, for obvious reasons. I don’t give a shit what they do in their own squalid little dictatorships, but they seem to want to export “Submission” to the whole world, and they are willing to kill the likes of Salman Rushdie and those Danish cartoonists for insulting Islam. They are basically living somewhere around the 8th Century, and I often wish I had a time machine to send them back there. So when I mention religion at all in my stories, the practitioners are usually doing something nutty. About as nutty as praying five times a day facing Mecca, saying a rosary, handling deadly snakes, or speaking in tongues.”

“Why is it that once having decided what I must do, I'm afraid to reexamine my decision? Maybe because the original decision cost me so much that I didn’t want to go through it again.”