子曰，父在，观其志，父没，观其行，三年无改于父之道，可谓孝矣。
白话导读
孔子说：父亲在世时，观察儿子的志向；父亲去世后，观察儿子的行为。如果多年不改变父亲合乎正道的做法，就可以说是孝了。
James Legge 英译
The Master said, "While a man's father is alive, look at the bent of his will; when his father is dead, look at his conduct. If for three years he does not alter from the way of his father, he may be called filial."
译注：James Legge 公版英译，1893 年原版。
注释
- 底本：Wikisource 整理的 James Legge《The Chinese Classics》公版中英文本（1893–1895）。
- 简体化：原文由繁体转为简体（OpenCC），与公版英译逐句对应。