Valores

Most schools will give you a fellowship and a stipend to pursue a Ph.D.. If they don't, then they're not really all that interested in you and don't think you'd end up getting through the program. Money will be tight while you do this, unless you have income or savings from other sources, but it should be enough to survive on. The fellowship might come with responsibilities, like being a TA or an RA, as DH said.