Lloyd-Jones and Fads

Here's a gem that I ran across in D. Martyn Lloyd-Jones classic book, Preaching and Preachers:

Instead of just perpetuating certain practices we must ask: Why should I do this? How did this custom ever start? As we do so we shall find that so many of these things which are regarded as essential were only introduced, and for wrong reasons, towards the middle of the last century. How different the state of our churches would be if we were all concerned to be orthodox in our beliefs as we are to be orthodox in our conformity to "the thing to do" and "the done thing" in the churches (p. 247).