If we are any good we must always be working towards the moment at which our Pupils are fit to become our Critics & Rivals
C. S. LewisChronological snobbery is the uncritical acceptance of the intellectual climate common to our own age and the assumption that whatever has gone out of date is on that account discredited. You must find why it went out of date. Was it ever refuted (and if so by whom, where, and how conclusively), or did it merely die away as fashions do? If the latter, this tells us nothing about its truth or falsehood.
C. S. Lewis