He’s a computer. Perfect memory, rigid logic, no judgment. I forgot. I talked to him like a human being, and now— - Larry Niven

"It does not disturb me to play a god," he said. "It disturbs me to play a god badly."

Priests learn to be practical, if their gods don’t.

I knew it long ago: I’m a compulsive teacher, but I can’t teach. The godawful state of today’s education system isn’t what’s stopping me. I lack at least two of the essential qualifications.
I cannot “suffer fools gladly.” The smartest of my pupils would get all my attention, and the rest would have to fend for themselves. And I can’t handle being interrupted.
Writing is the answer. Whatever I have to teach, my students will select themselves by buying the book. And nobody interrupts a printed page.