What does the narrator say about the "most important things"?

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Words shrink them.

Words stay inside of them.

Words make them secret.

Words expand them.

the group i'm selecting: greeks.

a first group of greek immigrants came to the us in the 1850s. the second group came to america starting in the 1890s due to economic opportunities they didn't have back in their home caused by the hardships of ottoman rule. greek immigration was 90% male, many of them expected to work and return to greece after earning enough capital, but ultimately had to remain in the us after the greek genocide.

by 1880, germany had more rail lines than great britain and russia.

b europeans take corn to africa. corn becomes an important crop there.