The historian has a habit of saying of people in the past: "I think they may well be considered worthy of praise, allowing for the ideas of their time." There will never be really good history until the historian says, "I think they were worthy of praise, allowing for the ideas of my time...

...the historian ought to be made to understand that his day is only a day. He is apt to treat it as if it were a day of judgment. We all have a little weakness, which is very natural but rather misleading, for supposing that this epoch must be the end of the world because it will be the end of us. How future generations will get on without us is indeed, when we come to think of it, quite a puzzle. But I suppose they will get on somehow, and may possibly venture to revise our judgments as we have revised earlier judgments.

-August 15, 1925, Illustrated London News