The rest of the poem explores the ways that silence can be used as a tool of oppression. Hughes writes, "Silence is a weapon / Used by the powerful / To keep the powerless afraid." This line highlights the way that silence can be used to maintain the status quo and prevent those who are oppressed from speaking out against their oppression. Hughes also explores the way that silence can be internalized, as he writes, "Silence is a disease / That eats away at the soul." This line suggests that the silence imposed by oppression can have a devastating impact on the mental and emotional health of those who are oppressed.
Ultimately, Hughes's poem "Silence" is a call for action. He writes, "We must break the silence / And let our voices be heard." This line encourages those who are oppressed to speak out against their oppression and demand justice. Hughes also suggests that the silence of those who are not oppressed is complicit in the oppression of others, and he calls on everyone to join the fight against injustice.