Book 17: 《陽貨》 Yang Huo
《陽貨》 Passage 17.12
子曰:「色厲而內荏,譬諸小人,其猶穿窬之盜也與?」
Legge Translation (1861)
The Master said: "He who puts on an appearance of stern firmness, while inwardly he is weak, is like one of the small, mean people; — yea, is he not like the thief who breaks through, or climbs over, a wall?"