No social purpose is served by having the defendant get free some aspect of the plaintiff that would have market value and for which he would normally pay.
— Zacchini v. Scripps-Howard Broad. Co., U.S. Supreme Court 1977
In our haste to disseminate news, it should not be forgotten that the Framers intended copyright itself to be the engine of free expression. By establishing a marketable right to the use of one’s expression, copyright supplies the economic incentive to create and disseminate ideas.
— Harper & Row v. Nation Enterprises, U.S. Supreme Court 1985

I should have gone to law school before people told me I couldn't expect to be paid to write.