You might want to be careful around this subject, this is an issue that most won't concede on either side of the argument. While yes, one of you may yeild later, but often times just knowing your partner doesn't want the same life goals you do is enough to start questioning the future of the relationship.
We're all young here, and while most of us have a pretty good idea of what we want out of life, just don't bank on everything turning out the way you hoped.