Isaac Asimov: How to never run out of ideas again

Wikipedia says Isaac Asimov wrote 506 published books. Where did he get his ideas? Charles Chu says Asimov used a number of tactics:

1. Never Stop Learning

All this incredibly miscellaneous reading, the result of lack of guidance, left its indelible mark. My interest was aroused in twenty different directions and all those interests remained. I have written books on mythology, on the Bible, on Shakespeare, on history, on science, and so on.

2. Dont Fight the Stuck

"I dont stare at blank sheets of paper. I dont spend days and nights cudgeling a head that is empty of ideas. Instead, I simply leave the novel and go on to any of the dozen other projects that are on tap. I write an editorial, or an essay, or a short story, or work on one of my nonfiction books. By the time Ive grown tired of these things, my mind has been able to do its proper work and fill up again. I return to my novel and find myself able to write easily once more."

3. Beware the Resistance

4. Lower Your Standards

5. Make MORE Stuff

6. By thinking and thinking and thinking till Im ready to kill myself."

Image: Wikipedia