Thucydides said this quote

The absence of romance in my history will, I fear, detract somewhat from its interest, but if it is judged worthy by those inquirers who desire an exact knowledge of the past as an aid to the understanding of the future, which in the course of human things must resemble if it does not reflect it, I shall be content.In fine I have written my work not as an essay with which to win the applause of the moment but as a possession for all time.