Tolkien wrote Philomythus to Misomythus as a rejoinder to one [C.S. Lewis] who said that myths were lies and therefore worthless, even though ‘breathed through silver’.

I will not walk with your progressive apes,
erect and sapient. Before them gapes
the dark abyss to which their progress tends
if by God’s mercy progress ever ends,
and does not ceaselessly revolve the same
unfruitful course with changing of a name.

Read the whole thing.

Hat tip to Vanderleun.