The barrier during self-improvement is not so much that we hate learning, rather we hate being taught. To learn entails that the knowledge was achieved on one's own accord - it feels great - but to be taught often leaves a feeling of inferiority. Thus it takes a bit of determination and a lot of humility in order for one to fully develop.
One of the greatest evils is the foolishness of a good man. For the giving man to withhold helping someone in order to first assure personal fortification is not selfish, but to elude needless self-destruction; martyrdom is only practical when the thought is to die, else a good man faces the consequence of digging a hole from which he cannot escape, and truly helps no one in the long run.