No Ajahn Chah《144》

《144》小心，仔细地观察我们的戒。戒，就是惭愧心。我们所感到疑惑的，就不该去做或说，这就是戒。所谓清净，就是超越一切的疑惑。

Be careful about observing our precepts. Virtue is a sense of shame. What we have doubts about; we should not do or say. This is virtue. Purity is being beyond all doubts.