《北史·列传·卷八》
十五岁时，入朝侍奉皇帝，成为心腹。他办事细心严密，没有出现过错。
年十五，内侍左右，性谨密，初无过行。
At the age of 15, he entered the imperial court to serve the Emperor as his intimate aide. He was meticulous and prudent in handling affairs, and never made any mistakes.
<s>[INST] Render the following Classical Chinese text into fluent English: 年十五，内侍左右，性谨密，初无过行。 [/INST] At the age of 15, he entered the imperial court to serve the Emperor as his intimate aide. He was meticulous and prudent in handling affairs, and never made any mistakes.</s>
Render the following Classical Chinese text into fluent English: 年十五，内侍左右，性谨密，初无过行。
user
At the age of 15, he entered the imperial court to serve the Emperor as his intimate aide. He was meticulous and prudent in handling affairs, and never made any mistakes.
assistant