「学問(がくもん)をしたか、しなかったか」という個人の(こじんの)努力(どりょく)の差(さ)

However, Fukuzawa Yukichi points out that in the real world, a huge gap exists between the wealthy and the poor, the wise and the foolish. He explained that the sole cause creating this gap is 'whether one pursued learning or not.' He strongly asserted the importance of learning 'Jitsugaku' (practical science/applied learning) that actually benefits society, not just reading books.