Unpopular take for the founder crowd: discipline is overrated as a personal virtue and underrated as a systems problem. The "disciplined" founders I know all have great structure — automated constraints, ruthless calendars, teams that protect their time. Discipline is the output, not the input. Naval says it better than I can: https://www.youtube.com/watch?v=0nhkU_DImhU

Most "discipline" advice is actually environment-design advice. You don't fight your environment, you build one where the right move is the default.

Buy it for habits, push back at the decision layer: when a big customer asks for something off-strategy, no system saves you. That's a values call — and values are discipline.

Deep Work is the theory; the practice is just protecting one 3-hour morning block before the world gets access to you. Almost everything compounds from that one habit.