Hi, I'm an author. There are many quotes floating around the internet that have come from me or my published books. These are usually no more than a sentence long. My question is, are other people allowed to make money from my quotes, given that I make absolutely nothing from them? I have seen my quotes appear in other books (of quote collections) for sale on Amazon. There are many social media sites using my quotes to promote their site. My words have also been paired with images that can be purchased to hang as pictures in people's homes. I have not been asked for permission for any of this and I make nothing from my words being used. I thought, because short phrases might not be considered substantial, anyone could use them so long as they credit me, but it just seems a little unfair people are making money from something I wrote when I'm struggling to feed my family. Any help would be appreciated. Thanks.