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.

So, we pray well when we remain in this way in the presence of God, with no exertion of the understanding or will. Therefore, you will do well to listen to God in the urge you feel to return to us.

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

Our Lord and the saints accomplished more by suffering than by acting.

I cannot think of the results of your labors without shame at the little we do.

Always be quite simple and sincere and ask God to grant me those two virtues.

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