A. Happiness lies in persistent pursuit.
B. Happiness is in your own hand.
C. Self-knowledge is positively related to happiness.
D. Happiness is based on comparison.
E. There does not exist a guide to happiness.
F. Happiness is all about doing what you want to.
以下是5个人对幸福的看法，请把个人的看法与上面对幸福的表述匹配起来。
