上句见：Day138
The Story of Philosophy的第139句：第1章Plato第2节II. Socrates第9段第3句：

If, for example, good meant intelligent, and virtue meant wisdom; if men could be taught to see clearly their real interests, to see afar the distant results of their deeds, to criticize and coördinate their desires out of a self-cancelling chaos into a purposive and creative harmony—this, perhaps, would provide for the educated and sophisticated man the morality which in the unlettered relies on reiterated precepts and external control. Perhaps all sin is error, partial vision, foolishness? The intelligent man may have the same violent and unsocial impulses as the ignorant man, but surely he will control them better, and slip less often into imitation of the beast. And in an intelligently administered powers, more than it took from him in restricted liberty— the advantage of every man would lie in social and loyal conduct, and only clear sight would be needed to ensure peace and order and good will.
浙江大学译本：有识者或许跟无知者一样，偶有暴力或不文明的冲动，但可以确信的是，他们能够更好地控制这种情绪，因而很少见到他们真做出什么兽性行为。

解析

这句指出有识之士与无知者在道德行为上的异同点。两者都会犯错，但是前者会控制情绪。
1、 The intelligent man may have the same violent and unsocial impulses as the ignorant man,
人性：无论有识之士或许与无知者，偶有暴力以及不合群的冲动。
unsocial：occurring at times that prevent you from being with your friends and family 不合群
The morals of those little sects, indeed, have frequently been rather disagreeably rigorous and unsocial.事实上，那些小教派的道德经常是相当严格和不合群的， 令人不快。《国富论》

2、but surely he will control them better, and slip less often into imitation of the beast.
对冲动的控制：聪明人会控制这些冲动，很少有兽性行为。
slip into：to gradually start to be in a bad state or situation
Goldman Sachs, a bank, no longer sees the euro zone slipping into recession in 2023. 高盛银行改变了2023年欧元区将陷入衰退的想法。《经济学人》

有知者也许与无知者一样，偶有暴力或不合群的冲动，但无疑他会更好地把控这些冲动，更少变成兽性行为。