I live my life to maintain my own happiness while trying my best to not cause unhappiness to anyone else.

我在生活中维护着自己的快乐，并尽最大努力不给他人带来不快。

youdao

We cannot aspire to happiness, only to less unhappiness.

我们无法渴望得到快乐，而只能期望更少的痛苦。

youdao

From being happy, one can become unhappy, so there are more unpleasant surprises in happiness than in unhappiness.

人可以从快乐变为不快乐，所以比起痛苦来说，幸福背后有着更多不如意的意外。

youdao

His two opposing ideas involved seeking happiness from material things, and knowing that material things only brought unhappiness.

VOA: special.2010.11.21

Many people said the problem with general levels of happiness or unhappiness rather, the cause is people have too high expectations.

很多人说,一般的快乐或不快乐水平，是由于人们有过高的期望。

哈佛公开课 - 幸福课课程节选

Now happiness and unhappiness,or happiness and neurosis, psychosis and depression,are interconnected,of course.

幸福与忧愁，快乐与紧张，精神病与抑郁，都有很大的内在联系。

哈佛公开课 - 幸福课课程节选

Whatever your means of achieving happiness, I do think unhappiness in all its various forms lurks around every corner, hiding out, waiting for us to fall into its ever-open jaws.

FORBES: Happiness Is Hard Work

Here the irony that lies under all human aspiration shows itself: the quest for happiness, as always, brings only unhappiness in the end.

FORBES: Look, Up In The Sky! It's A Bird, It's A Plane, It's Congressman!

If there is one formula that we all subscribe to Republicans, Democrats and Independents, alike it is this: a strong economy equals happiness and, conversely, a weak economy equals unhappiness.

NPR: 'Happiness Index' Bucks Financial Woes