We talk to a lot of smart people here at The Freelancer. Over the years, we've interviewed Pulitzer Prize winners, entrepreneurs, and even famous journalists like Glenn Greenwald. So we decided to gather the 25 best quotes we could find—on topics ranging from writing, negotiation, and managing clients—and put them on a SlideShare for easy browsing. The hope is that freelancers of all levels will find the advice invaluable.