Meister Eckhart: If the only prayer you said in your whole life was, "thank you," that would suffice.
Melodie Beattie: Gratitude unlocks the fullness of life. It turns what we have into enough, and more. It turns denial into acceptance, chaos into order, confusion into clarity.... It turns problems into gifts, failures into success, the unexpected into perfect timing, and mistakes into important events. Gratitude makes sense of our past, brings peace for today and creates a vision for tomorrow.
Thomas Erskine: In the New Testament, religion is grace and ethics is gratitude.
William James: The deepest craving of human nature is the need to be appreciated.