One of the greatest errors in the reconstruction of another era lies in our tendency to think of them as being like ourselves in feeling and attitudes. Actually, without considerable study on the part of a present-day man — if he were confronted by a fifteenth-century man — there would be no possible communication. I think it is possible through knowledge and discipline for a modern man to understand, and, to a certain extent, live into a fifteenth-century mind, but the reverse would be completely impossible.

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "One of the greatest errors in the reconstruction of another era lies in our tendency to think of them as being like ourselves in feeling and attitudes. Actually, without considerable study on the part of a present-day man — if he were confronted by a fifteenth-century man — there would be no possible communication. I think it is possible through knowledge and discipline for a modern man to understand, and, to a certain extent, live into a fifteenth-century mind, but the reverse would be completely impossible." in the context of "Appendix, letter to Elizabeth Otis and Chase Horton (14 March 1958)" to mean that wisdom is timeless.