Of course I wonder if happiness tactics that come from someone elsecan ever stick.

当然我怀疑来自与某人的快乐策略是否对其他人有用。

youdao

Now if happiness is contagious, don't you want to put yourself in a position to catch it?

那么，如果幸福是会传染的，你不想去抓住它么？

youdao

If happiness or sadness no longer matters, this person won't even contemplate suicide - because those who do mistakenly entertain death as an avenue to 'happiness'.

如果快乐或悲伤不再重要，那么错把死亡作通向快乐大道的人们也不会考虑自杀。

youdao

"If we keep defining our happiness through how much we consume it's going to lead to tragic end,"

VOA: standard.2010.01.23

If it's a true happiness smile, that's actually bodes better for the relationship than a Pan Am, or greeting smile.

如果是一个真正开心的微笑，对这段感情来说是个好兆头,比问候式微笑好的多。

耶鲁公开课 - 心理学导论课程节选

If you want to spread happiness, "Be the change you want to see in the world." By example.

如果你想传播快乐，“成为你想在世上见到的改变“，以身作则。

哈佛公开课 - 幸福课课程节选

Which brings me to my second question: If happiness can indeed be cultivated, how, specifically, can we achieve it?

FORBES: Happiness Is Hard Work

So if happiness cannot be bought and yet we use it to measure our business success what can we do to attain it?

FORBES: 4 Steps To Become A Happier Entrepreneur

And for those suffering from depression, I know how dark and endless that tunnel can feel, but if happiness seems impossible to find, please hold on to the possibility of hope, faint though it may be.

CNN: Robin Williams' daughter speaks out about depression