"The first thing to do is to self-educate. Second, consider hiring a lawyer. I did, but things went so smoothly that I didn’t need one. Third, ask for your rights back. I had expected [McGraw-Hill] to ask for many thousands for the rights based on my calculations of their profits for the next five years."
January 1, 1970
https://en.wikiquote.org/wiki/David_Ullman_(author)