DescriptionThis dissertation argues that knowledge is best understood as a true belief acquired through the manifestation of intellectually virtuous performance. I argue that intellectually virtuous performance requires intellectual responsibility but not a characteristic motivation. I distinguish my view from other conceptions of intellectual virtues; particularly the virtue reliabilism of Ernest Sosa and John Greco and the virtue responsibilism of Linda Zagzebski. I argue that intellectual virtues are best understood along the lines of Aristotlean skills by looking at various puzzles in epistemology and showing how this view can make more progress in solving these puzzles than its competitors.