I liked this quote from Henry Ford. Only refer to the past if it helps future progress. Ignore nostalgia, learn from history.
No-one ever does that of course. Not designers, nor politicians. Too many people hark back to a rose tinted past. A biscuit tin painting version of a future. Well, fuck that.
(Phil, it's not lost on me that this plaque is from a replica of a statue which is the past copying the past and aiding no progress whatsoever. Literally a copy. Thus the medium destroys the message.)