译文：事情做不好要在自己身上找原因，不要埋怨他人和下属。赏析：事情失败时不要懈怠，多从自身找原因，善于从失败中汲取教训。

幸福和不幸取决于我们对事物的看法。

The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.