Is it plagiarism to quote some archaic sentences written by modern people when writing novels?

Not quoting, not copying. Many novels borrowed sentences written by others. Other people's experiences or lessons you can learn from. Lu Xun's On Translation: "Paying attention to the reference of translation is actually to urge and encourage creation." Mao Zedong's speech and conclusion at Yan 'an Forum on Literature and Art: "We must inherit all the excellent literary and artistic heritages and critically absorb all the beneficial things in them as a reference for us to create works from the literary and artistic raw materials in people's lives here and now."