from the perspective of the whole novel, it has a lot to do with the fact that the professor left the captain. The reason is also his character, the so-called character character promotes the plot of the novel. From the time he boarded the Nautilus, he insisted on leaving. For ten months, almost every chapter talked to the professor about how to run away.

Love freedom and hometown: There should be no worries about eating and drinking in Nautilus, but he can lay down his life and run away in order to return to his hometown. And when I was trapped in my cell at first, I was mad with anger.

there is another obvious thing that many people may not find: they are particularly good at food. For details, see Chapter 21 of Part One, Days on Land, which is very good at cooking. His sentence "fish can be divided into edible and inedible" has sprouted me for a long time ~ ~ ~ in fact, it also shows his straightforward and greedy character.

Extended information:

Creation background of Two Wan Li under the Sea

The brutal suppression of the Polish people's uprising against the czar's dictatorship was a fuse for Verne's creation of Two Wan Li under the Sea. In his novels, he created Captain Nemo, a tall figure who opposed the autocratic rule of the czar, and endowed him with a strong sense of social responsibility and humanitarian spirit to express his criticism of reality.

at the beginning of writing the novel, Verne and Hersel, the publisher, had an argument about the characteristics of Nemo, the captain of the Nautilus. Hersel thought that Nemo should be described as the mortal enemy of the slave trade, providing a clear and ideal defense for his ruthless attack on some ships at sea.

But Verne hoped that Nemo was a Polish, and he never forgave his hatred against the Russian czar (he had brutally suppressed a Polish uprising). However, Hersel was worried that he would cause diplomatic differences and make the book banned in the lucrative Russian market.