How much can you quote from a book (giving the author credit) at any one time?

Question

I'm doing a powerpoint presentation, but I was making it all short quotes from the book I'm doing the topic on. I put the sources on every quote, but it seems like sometimes there is a limit on how much you can quote from a given book at one time.

Can someone help me with this? I'm not trying to get into trouble over a powerpoint. Lol.

If it helps, the book is :Dark Remedy: The Impact of Thalidomide and Its Revival as a Vital Medicine."

Answer 1

Probably not what you want to hear but I can quote from the Bible at any given time.  The auther I give credit to well, you probably know.  Other than that I can quote a little Shakespear (sp).