Xuanzang was known for his extensive but careful translations of Indian Buddhist texts to Chinese, which have enabled subsequent recoveries of lost Indian Buddhist texts from the translated Chinese copies. He is credited with writing or compiling the "Cheng Weishi Lun" as a commentary on these texts. His translation of the Heart Sutra became and remains the standard in all East Asian Buddhist sects; as well, this translation of the Heart Sutra was generally admired within the traditional Chinese gentry and is still widely respected as numerous renowned past and present Chinese calligraphers have penned its texts as their artworks. Additionally, he was known for recording the events of the reign of the northern Indian emperor, Harsha.