And he was not an Ayrab (Salmon in his intro CS book claims Al-Khuarezmi was an Arabic scholar--which is false and made me lose all respect for Salmon as an educator. If he got such an elementary fact wrong, what else is there that could be incomplete?)

PS: Yes Alkhuarezmi wrote in Arabic, but he was not an Arab. All classical Persian scholars at the time were fluent in Arabic as it was the lingua franca of science, medicine, philosophy and theology.

Then I went back to a book written by humans (Eric Nikitin's "Realm of Oberon").

The sun is responsible for benefiting over 200 processes in the body. And you don't need to be out in the sun all day to get the benefits (if your job does not demand it).

A bit dull at the start but it quickly ramps up and escalates to pitch fever excitement. Can't wait to see what Lizzie would do wrt to her diamonds. :)

I love book discussions and especially by someone like you (and Keller, who in the dedication to his Pascal book has: "to my father, who taught me the importance of learning, and to my mother, who taught me the importance of not doing it all the time."

Btw, to thank you, I'll share this hidden gem that will help making learning smooth and fun: "Learning & Memory" by W. Wickelgren-- I've seen dozens of books on this but only this walks the walk (the author practices cognitive psychology to make his book easy to learn from, and to remember).

Have a good day,

Eagga