The same four pillars, different people and different factions have different views. Who should you listen to?

Flexible use is not a dead set! The intensive reading of Yuan Hai Zi Ping insists on using Yuan Hai Zi Ping to calculate the judgments of the so-called old and new schools, and the result will be inseparable from its clan, and all schools will be floating clouds without yin and yang and five elements! Learning four pillars, yin and yang and five elements is not to know how to judge each other, but to get started. The most basic things are like mastery and flexibility, so that there won't be exactly the same fate in the world, and you will judge different things instead of dying. It's still far from getting started. It's no use talking!