"Firstly, that history is no respecter of persons or communities; secondly, that its sole aim is to find out the truth by following the canons commonly accepted as sound by all historians; and thirdly, to express the truth, without fear, envy, malice, passion, or prejudice, and irrespective of all extraneous considerations, both political and humane. In judging any remark or opinion expressed in such a history, the question to be asked is not whether it is pleasant or unpleasant, mild or strong, impolitic or imprudent, but simply whether it is true or false, just or unjust, and above all, whether it is or is not supported by the evidence at our disposal. (xxx)"
January 1, 1970
https://en.wikiquote.org/wiki/History