The Phaedo

When I read about Phaedo, there was one argument that was bothering me the whole time. I understood and like the theory that learning is merely recollection, and that knowledge is fully recalling. If the soul has been jumping around to different "bodies" and the soul is a continuance, where did the soul begin? When did it first "learn" in order for the following bodies to recall. In order to remember something, you must have learned of it at one point. There is a single moment when you learn something for the first time. The problem with that theory is, then, where/when did the soul first begin? There must have been a beginning. Right?

If there was no beginning then it always was - like a finite circle....