So you graduated from college and joined the ranks of the working. But you sometimes felt something was amiss and have considered now to go back to school to get your master’s degree or even a PhD. Is it too late to go back to school? If you are in your 30’s, 40’s or more and decades away since your college days you may feel that that ship has sailed. But those who have returned to school may find it the right move, with increased earning potential and personal satisfaction.