[ Surely there must be at least one book in modern parlance, he thinks. But he shakes the thought away. ]

I do not have the time to teach you today as I'm currently working, but I have time off later in the week. I'll find a book to teach you from then if you're still inclined to learn.

[ He holds up a warning finger. ]

Just know that I'm a medical doctor, not a herbalist or an apothecary.