On occasion, the leader may be intelligent and highly educated, but the possession of these qualities does him, as a rule, more harm than good. By showing how complex things are, by allowing of explanation and promoting comprehension, intelligence always renders its owner indulgent, and blunts, in a large measure, that intensity and violence of conviction needful for apostles. The great leaders of crowds of all ages, and those of the Revolution in particular,have been of lamentably narrow intellect; while it is precisely those whose intelligence has been the most restricted who have exercised the greatest infiuence.