四十二章經 1.42

1.42

佛言：「夫人為道，猶所鍛鐵漸深，棄去垢，成器必好。學道以漸深，去心垢，精進就道。暴即身疲，身疲即意惱，意惱即行退，行退即修罪。」

The Buddha said: "A person practicing the Way is like forged iron: as it is gradually refined and its dross discarded, the vessel made from it will surely be fine. In studying the Way, gradually go deeper, discard the dross of the mind, and vigorously advance toward the Way. If you act violently, the body will tire; if the body tires, the mind will become vexed; if the mind becomes vexed, your practice will regress; if your practice regresses, you will cultivate offenses."