FOREMOST among the soul’s affections is love. Love is the ruler of every motion of the heart; drawing all to itself, and making us like to that we love. Beware, then, my daughter, of harbouring any evil affection, or you too will become evil. And friendship is the most dangerous of all affections, because any other love may exist without much mental communication, but as friendship is founded thereon, it is hardly possible to be closely bound by its ties to any one without sharing in his qualities.

All love is not friendship, for one may love without any return, and friendship implies mutual love. Further, those who are bound by such affection must be conscious that it is reciprocal,— otherwise there may be love but not friendship; and moreover, there must be something communicated between the friends as a solid foundation of friendship. –The Saint Francis de Sales Collection.