Great Work Requires Obsessive Interest
You cannot discipline yourself into doing great work. The drive must come from a genuine, deep interest that makes the work feel less like effort and more like compulsion.
"Interest will drive you to work harder than mere diligence ever could." Paul Graham, "How to Do Great Work"
Paul Graham's formula for great work has four steps: choose a field, learn enough to reach the frontier of knowledge, notice gaps, and explore promising ones. But the entire engine runs on one fuel: obsessive interest. Steps two and four require enormous effort, and no amount of willpower can sustain that effort if the underlying interest is not there. The empirical evidence that hard work is necessary is "on the scale of the evidence for mortality," as Graham puts it. Bill Gates never took a day off in his twenties. P. G. Wodehouse rewrote every sentence ten or twenty times at age 74. They worked this hard because they could not stop themselves.
The danger is per-project procrastination, which Graham calls far more dangerous than per-day procrastination. You put off the ambitious project year after year because "the time isn't right," and because you are working busily on something else, the alarm bells never go off. You are too busy to notice you are avoiding the thing that actually matters. The solution is to stay honest about what genuinely excites you. Graham's test: "What are you excessively curious about curious to a degree that would bore most other people?" That is what you should be working on.
The relationship between interest and hard work also resolves the seeming contradiction between talent and effort. There is a "faint xor between talent and hard work" in popular culture, but in reality the outliers have both. Since you cannot change your natural talent, doing great work reduces to finding the intersection of aptitude and obsessive interest and then working as hard as that interest naturally drives you to.
Takeaway: Find what you are excessively curious about, then let that curiosity drive the relentless effort that great work demands.
See also: The Bus Ticket Theory of Genius | Deep Work Requires Eliminating Shallow Work | One Percent Improvements Compound