I have been reading and studying self improvement (law of attraction) from six years now.
Over the past years I have realized that the best courses on the topic are in the public domain now.
I wish to create a info product some day on the law of attraction, so I was wondering since the text for books like Science of getting rich etc is now in public domain, can I use the info to help me create my own home study course?
I know many people do recycle content but what I am talking about is using the exact terminology of famous authors to make my point.
Is it completely legal or I am missing something here?