If you were to log in, you'd be able to get more information on your fellow community member.
The sole objective of a doctor's degree should be the quest for knowledge, nothing more, nothing less. In this age and time, at least in my country (spain) this means working your ass off 10 to 12 hours a day for four years for a miserable salary (around 840 euro/month)until you get your phd, after that if you are exceptionally lucky you might just find a junior professor's post open (profesor adjunto), if not, the only way to continue researching is to look for research posts in other countries. After some years hopping around the planet from project to project, if you are brilliant and LUCKY enough, you might find a real professor's post when and if you come back. In any case before embarking on a PHD you have to realize that you will NOT get any other satisfacion from it other than the intellectual one, and you must be ready to make many sacrifices. (There are exceptions but they are truly rare, sucess stories happen to hard-working exceptional people, whatever their back...