于心无愧

Explanation: There is nothing in the heart of shame. 　　Source: Sung Order, "Xie Liu Cheng Father" where every eye dust every night, the more gas type phase of the long-firm to ask for this then be defined, in the heart worthy of fruit on their merit. " 　　Examples: This is called En gratitude, although this heaven and earth spirits, also ~. ★ clearly teaches the human, "Ho-kau Biography" The Sixth Round