"Ve have to be free. Ve have no choice"
Isaac Bashevis Singer
Interestingly enough in HILCHOS TESHUVA the Rambam teaches us about the principal of free choice and not in Yesodei HaTorah where he discusses philosophical concepts. This teaches that the basis of all teshuva is the belief that we can change. The fact that most people DON'T doesn't mean that they CAN'T.