“Programs must be written for people to read, and only incidentally for machines to execute.”

“data files aren’t executable, and viruses have to be executed. It’s safest to say that viruses hide only in executable program files.”

“Progress is possible only if we train ourselves to think about programs without thinking of them as pieces of executable code. ”

“Systems program building is an entropy-decreasing process, hence inherently metastable. Program maintenance is an entropy-increasing process, and even its most skillful execution only delays the subsidence of the system into unfixable obsolescence.”

“His situation, insofar as he was a machine, was complex, tragic, and laughable. But the sacred part of him, his awareness, remained an unwavering band of light.And this book is being written by a meat machine in cooperation with a machine made of metal and plastic. The plastic, incidentally, is a close relative of the gunk in Sugar Creek. And at the core of the writing meat machine is something sacred, which is an unwavering band of light.At the core of each person who reads this book is a band of unwavering light.My doorbell has just rung in my New York apartment. And I know what I will find when I open my front door: an unwavering band of light.”

“Your parents were fighting machines and self-pitying machines. Your mother was programmed to bawl out your father for being a defective moneymaking machine, and your father was programmed to bawl out your mother for being a defective housekeeping machine. They were programmed to bawl each other out for being defective loving machines. Then your father was programmed to stomp out of the house and slam the door. This automatically turned your mother into a weeping machine. And your father would go down to the tavern where he would get drunk with some other drinking machines. Then all the drinking machines would go to a whorehouse and rent fucking machines. And then your father would drag himself home to become an apologizing machine. And your mother would become a very slow forgiving machine.”