幸福的抉择 Choice of happiness

幸福原理是很简单；可是实践却很困难。
幸福只须感恩知足；可是不能随心所欲。
幸福是因个人而异；可是印象身边一切。
幸福市拥有了承诺；可是切记量力而为。

Happiness principle is very simple; but practiseis very difficult.
Happiness only need gratitude and contentment, but can not be arbitrary.
Happiness is different for individuals; but affect all around.
Happiness is to have the commitment; but be sure within their means.