Many great persons have been ...

Many great persons have been of opinion that love is no other thing than complacency itself, in which they have had much appearance of reason. For not only does the movement of love take its origin from the complacency which the heart feels at the first approach of good, and find its end in a second complacency which returns to the heart by union with the thing beloved--but further, it depends for its preservation on this complacency, and can only subsist through it as through its mother and nurse; so that as soon as the complacency ceases, love ceases.
 Saint Francis de Sales

Quotes from the same author

Nothing is so strong as gentleness, nothing so gentle as real strength.
 Saint Francis de Sales
There are many who say to the Lord, "I give myself wholly to Thee, without any reserve," but there are few who embrace the practice of this abandonment, which consists in receiving with a certain indifference every sort of event, as it happens in conformity with Divine Providence, as well afflictions as consolations, contempt and reproaches as honor and glory.
 Saint Francis de Sales
And when children begin to use their reason, fathers and mothers should take great pains to fill their hearts with the fear of God. This the good Queen Blanche did most earnestly by St. Louis, her son: witness her oft-repeated words, "My son, I would sooner see you die than guilty of a mortal sin;" words which sank so deeply into the saintly monarch's heart, that he himself said there was no day on which they did not recur to his mind, and strengthen him in treading God's ways.
 Saint Francis de Sales
What son would not bring his mother back to life and would not bring her into paradise after her death if he could?
 Saint Francis de Sales
Have patience with all things, but chiefly have patience with yourself. Do not lose courage in considering your own imperfections but instantly set about remedying them -- every day begin the task anew.
 Saint Francis de Sales