The part of this excerpt from that gives evidence to the idea that it is ideal for people to respect others’ opinions but to care only about their own is: "What I must do is all that concerns me, not what the people think"
Textual evidence is a portion of a text that lends credibility to a stated claim or assertion.
In this case, the portion that gives textual evidence supporting the assertion made about opinions is: "What I must do is all that concerns me, not what the people think"
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