Non-linearity and Persistence
You may study for a year and learn nothing, then unless you are disheartened by the empty results and give up, something will come to you in a flash. Owing to this nonlinearity, people cannot comprehend the nature of the rare event. There are routes to success that are nonrandom, but few, very few people have the mental stamina to follow them. Those who go the extra mile are rewarded. Most people give up before the rewards. - Nassim Nocholas Taleb(Fooled by randomness)