He went to his uncle's store in Edo when he was 16 years old (1748) for the purpose of studying commerce, but he returned to his birthplace because he did not have any time to do reading and hated such life.
16歳の時(1748年)江戸に商売の勉強の為に叔父の店で働くが、本を読めぬ生活を嫌い帰郷。