On the need to go to the source

A new monk shows up at a monastery where the monks spend their time making copies of ancient books.

The new monk declares to the abbot, "I want to make copies of the originals of our sources, wherever they happen to be. I hope to avoid duplicating errors that might have been made in others' copies."

The abbot agrees though he realizes that travel might become rather expensive. Instead of starting a long journey, the abbot aks, "Could you start with the few original sources we have in the attics of the archive?"

The new monk agrees, and goes into the attics. Several hours later the new monk reports to the abbot. He is weeping, but finally he chokes out, "the word is 'celebrate,' not 'celibate'!"

Moral

Use the easiest sources for your early research, but always go to the primary source for the most accurate information.