In this paper, I examine Hume's views on personal identity. Despite some negative opinions on his theory, I will try to see how to make something useful from it and to explain the way in which Hume's final views on this matter are consistent with our intuitions. To this end, I will recast Hume's argument on personal identity. In the second section of the paper, I will use his views to answer some puzzling claims about split personality. In the concluding section, I will advance some comments on Penelhum's charge that the Scottish philosopher committed a mistake in conceptual investigation.