Yǒuxiē rén yègōnghàolóng, zuǐshang tán gǎigé, zhēn dào gǎigé shí yòu fǎnduì.
Some people only love reform in words; when real reform comes, they oppose it.
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From 刘向《新序·杂事》: Lord Ye (叶公) of Chu decorated his house with dragon carvings. When a real dragon heard of his devotion and came to visit, poking its head through the window, Lord Ye fled in terror.
