I've been reading a few articles by classical foundationalists lately and I must admit that their arguments are very appealing to me. I'm not so sure Plantinga's two criticisms hold water:
(i) If only self-evident and incorrigible propositions are properly basic, then we are all irrational, since we commonly accept numerous beliefs that are not based on evidence and that are neither self-evident nor incorrigible.
(ii) The proposition Only beliefs that are self-evident or incorrigible are properly basic is not itself properly basic, since it is neither self-evident nor incorrigible. Therefore, if we are to believe this proposition, we must have evidence that it is true. But there is no such evidence.