"I have read some pages of your apology [Archeteles]. I beseech you for the sake of the glory of the Gospel, which I know you would favour and which we all who bear the name of Christ ought to favour, if you should issue anything hereafter, treat so serious a matter seriously, and bear in mind evangelical modesty and patience. Consult your learned friends before you issue anything. I fear that that apology will cause you great peril and will injure the Gospel. Even in the few pages that I have read there are many things I wanted to warn you about. I do not doubt that your prudence will take this in good part, for I have written late at night with a mind that is most solicitous for you. Farewell."
January 1, 1970
https://en.wikiquote.org/wiki/Huldrych_Zwingli