He had passed his life in the pursuit of happiness, and had never learnt that happiness is best attained when it is not sought; and, moreover, is only known when it is lost. It is doubtful whether anyone can say "I am happy"; but only "I was happy". For happiness is not well-being, content, heart's ease, pleasure, enjoyment: all these go to make happiness, but they are not happiness.

Author: W. Somerset Maugham