Gratitude is a duty which ought to be paid, but which none have a right to expect. Jean Jacques Rousseau
At times our own light goes out and is rekindled by a spark from another person. Each of us has cause to think with deep gratitude of those who have lighted the flame within us. Albert Schweitzer
Gratitude is the sign of noble souls. Aesop
Gratitude is not only the greatest of virtues, but the parent of all others. Cicero
Gratitude is a quality similar to electricity: it must be produced and discharged and used up in order to exist at all. William Faulkner
Gratitude is the fairest blossom Which springs from the soul. Henry Ward Beecher
Revenge is profitable, gratitude is expensive. Edward Gibbon
Gratitude is the most exquisite form of courtesy. Jacques Maritain
Gratitude is one of the least articulate of the emotions, especially when it is deep. Felix Frankfurter
Feeling gratitude and not expressing it is like wrapping a present and not giving it. William Arthur Ward
Joy is the simplest form of gratitude. Karl Barth
Gratitude … is a sickness suffered by dogs. Joseph Stalin
Gratitude, like love, is never a dependable international emotion. Joseph Alsop
Gratitude: the meanest and most snivelling attribute in the world. Dorothy Parker