Ideas improve. The meaning of words participates in the improvement. Plagiarism is necessary. Progress implies it. It embraces an author's phrase, makes use of his expressions, erases a false idea, and replaces it with the right idea.
“We live in deeds, not years; in thoughts, not figures on a dial. We should count time by heart throbs. He most lives who thinks most, feels the noblest, acts the best.”