The most powerful weapon to conquer the devil is humility. For, as he does not know at all how to employ it, neither does he know how to defend himself from it.

...it is difficult to master one's feelings and be exact in everything in the midst of many affairs

The angels would become incarnate if they could, so that they might come to earth to imitate the example and virtues of the Son of God!

It is true that zeal is the soul of the virtues, but most certainly, Monsieur, it must be according to knowledge, as Saint Paul says; that means: according to knowledge of experience. And because young people ordinarily do not possess this experiential knowledge, their zeal goes to excess, especially in those who have a natural asperity.

If there is any danger in the present weather, in the name of God, Monsieur, wait until spring

[L]ove is inventive to infinity.

...Omit nothing which can advance his work, and not blame others for the delay.