Don't harshly correct others
Tenthly, but if it be a duty gratefully to receive the remarks inspired by the desire of our good, it would, on the other hand, be unpardonable rudeness (...) not to employ all the skill of charity when obliged to contradict or correct others. Such a reply as: " That is not true!" " You lie !" or " You know not what you say," (...) —displays unpardonable ignorance.
We do not love people so much for the good they have done us, as for the good we do them.
Love does not consist of gazing at each other, but in looking outward together in the same direction.
It is not a lack of love, but a lack of friendship that makes unhappy marriages.