Copyright citing original quotes

[kidavis]

I am writing a book whereas I plan to get original (never before published) quotes, tips, and advice directly from celebrities and well known individuals. In the book, I will acknowledge the person who submits the quote. Is there a way for me to protect myself from unforeseen lawsuits from these individuals? I have one celebrity who gave me verbal permission...is that good enough?

 

[disagreeable]

You need written permission, if they dispute having given permission.