“Every age has its own outlook. It
is specially good at seeing certain truths and specially liable to make certain
mistakes. We all, therefore, need the books that will correct the
characteristic mistakes of our own period. And that means the old books. All
contemporary writers share to some extent the contemporary outlook – even
those, like myself, who seem most opposed to it. Nothing strikes me more when I
read the controversies of past ages than the fact that both sides were usually
assuming without question a good deal which we should now absolutely deny. They
thought that they were as completely opposed as two sides could be, but in fact
they were all the time secretly united – united with each other and against
earlier and later ages – by a great mass of common assumptions.
"We may be sure that the
characteristic blindness of the twentieth century – the blindness about which
posterity will ask, ‘But how could they have thought that?’ – lies where
we have never suspected it, and concerns something about which there is
untroubled agreement between Hitler and President Roosevelt or between Mr. H.G.
Wells and Karl Barth. None of us can fully escape this blindness, but we shall
certainly increase it, and weaken our guard against it, if we read only modern
books. Where they are true they will give us truths which we half knew already.
Where they are false they will aggravate the error with which we are already
dangerously ill. The only palliative is to keep the clean sea breeze of the
centuries blowing through our minds, and this can be done only by reading old
books”
– C.S. Lewis, introduction to Saint Athanasius’ On the Incarnation.