Alfred Painter:

Saying thank you is more than good manners. It is good spirituality.

Brother David Steindl-Rast :

Gratefulness is the key to a happy life that we hold in our hands, because if we are not grateful, then no matter how much we have we will not be happy -- because we will always want to have something else or something more.

Cicero:

Gratitude is not only the greatest of virtues, but the parent of all the others.

Denis Waitley:

Happiness cannot be traveled to, owned, earned, worn or consumed. Happiness is the spiritual experience of living every minute with love, grace and gratitude.

Eric Hoffer:

The hardest arithmetic to master is that which enables us to count our blessings.

H. U. Westermayer:

The Pilgrims made seven times more graves than huts. No Americans have been more impoverished than these who, nevertheless, set aside a day of thanksgiving.

Henry Ward Beecher:

Gratitude is the fairest blossom which springs from the soul.

John F. Kennedy:

As we express our gratitude, we must never forget that the highest appreciation is not to utter words, but to live by them.

Marcel Proust:

Let us be grateful to people who make us happy; they are the charming gardeners who make our souls blossom.

Margaret Cousins:

Appreciation can make a day, even change a life. Your willingness to put it into words is all that is necessary.

Meister Eckhart:

If the only prayer you said in your whole life was, "thank you," that would suffice.