Many interesting expressions, such as "an arm broken by a sumo wrestler", or "a son of a merchant who took his father's business ruins the business", can be found in his writing, providing good insights for us to review how the society of the time worked, and to understand Fukuzawa himself.
「力士に腕を折られる」や「商家の跡取り息子が身代を潰す」等、福沢諭吉の人間性を見る上でも、当時の世相を見る上でも興味深い表現が多い。