Laudator Temporis Acti

B.L. Ullman (1882-1965), "The Present Status of Latin Text Criticism," Classical Weekly 4.4 (October 22, 1910) 25-29 (at 26):

Now there are many different kinds of emendation, as many as there are different kinds of men — the emendations of inspiration, the emendations reached by logical deduction, and the emendations that do not emend. Some men are born emenders, others make themselves emenders — while the rest of us have emendations thrust upon us. Not that I do not believe in emendation, but I do believe that much of it is unnecessary and easily avoidable.

Id. (at 27):

The work of others has proved that the references to MSS of Scaliger, Bosius, Cruquius, Barth and a host of others are full of fraud or carelessness, or both. I would suggest a canon of criticism that ought to be adopted by all textual critics: A scholar of the period between the 15th and 18th centuries who quotes readings from MSS is guilty of fraud or gross carelessness until he is proved innocent. If this principle were rigorously adhered to, it would be a great step in advance.