attitude of gratitude (secular)

From Brian Tracy: Practice An Attitude of Gratitude.     "An attitude of gratitude causes you to be more sensitive and aware of people around you. The more gratitude you have, the more gratitude you express, the better and more positive your personality is, the higher your self-esteem becomes, the more popular and liked you are by all the people around you, and the better you feel. You should always be looking for ways to make people (especially your loved ones) feel important, valuable and loved."