Tā niánqīng shí shì ge yánfù, lǎo le yǐhòu duì sūnzi què tèbié wēnhé.
He was a strict father when he was young, but in old age he is very gentle with his grandson.
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culture
The pair 严父慈母 'strict father, kind mother' long described the ideal split of parenting; 慈父严母 reverses it. Old letters also used 严父 simply as a respectful word for one's father, and the humble 家严 'my father' comes from the same idea.