Gratitude is a mood that grows with age. It is extremely rare to delight in flowers or a quiet evening at home, a cup of tea or a walk in the woods when one is under twenty-two. There are so many larger, grander things to be concerned about: romantic love, career fulfillment, and political change. However, it is rare to be left entirely indifferent by smaller things in time. Gradually, almost all one's earlier, larger aspirations take a hit, perhaps a very large hit. One encounters some of the intractable problems of intimate relationships

— The School of Life by The School of Life (Page 253)