Perseverance is a great element of success. If you only knock long enough and loud enough at the gate, you are sure to wake up somebody.
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.
Yes Truth may be, but 'tis not Here; mankind must seek and find it There, But Where nor I nor you can tell, nor aught earth-mother ever bare. Enough to think that Truth can be: come sit we where the roses glow, Indeed he knows not how to know who knows not also how to 'unknow.