Humans and cows are no different — we open our eyes and need to find food to survive. Making money is just a supply-and-demand issue; if you don’t study supply and demand, it’s useless to talk about whether you’re any good.

Without customers needing your tools, there's no value—that's the most fundamental principle of market supply and demand.

Doing things, getting things done, repeatedly getting things done, being able to get things done in any field—this is the only path to becoming talent.

The master of the household wakes people up in the morning to work in the fields; at night, reminds the family that if they have grain, they should repair the courtyard wall; when the market shifts and grain prices drop, advises everyone to weave cloth; when grain prices rise, tells them to plant more grain; in lean years, borrows grain; in bountiful years, stores grain.