No Ajahn Chah《144》

《144》小心，仔細地觀察我們的戒。戒，就是慚愧心。我們所感到疑惑的，就不該去做或說，這就是戒。所謂清淨，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.