2. Attach the original text:
"The filial piety of all virtues is the first evil, and the source is always filial piety. Then whoever can't do it in the world can't bear it, so filial piety is the first of a hundred lines; It is not difficult to do evil thoughts together, so it is the first of all evils. "
Explanation: I always hold kindness and filial piety in my heart, so I can't bear to do any improper behavior in the world.
Therefore, filial piety is the first thing that should be done in all behaviors. Once a person has evil thoughts in his heart, it is not difficult to do what he usually doesn't want to do. Therefore, lust is the beginning of all evil deeds.