 Ross’s stronger requirements for self-evidence might provide a more satisfactory account. Since on his view self-evident propositions are evident for any person who has attained sufficient mental maturity and given the propositions sufficient consideration, he could deny that a child first being taught simple moral principles has a justification for these principles and deny that a math student who has been introduced to an “obvious” truth, but has not yet had a chance to give it any consideration, would have a justification for the truth. Ross could make the more plausible claim that if we had a justification for these propositions at first, it was only because of testimony. We did not, at first, have justifications for these propositions on our own. Later, when we were mature and had given these propositions due consideration, they would be evident to us on their own.